| /* | |
| * generic decoding-related code | |
| * | |
| * This file is part of FFmpeg. | |
| * | |
| * FFmpeg is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU Lesser General Public | |
| * License as published by the Free Software Foundation; either | |
| * version 2.1 of the License, or (at your option) any later version. | |
| * | |
| * FFmpeg is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| * Lesser General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU Lesser General Public | |
| * License along with FFmpeg; if not, write to the Free Software | |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| */ | |
| #include <stdint.h> | |
| #include <string.h> | |
| #include "config.h" | |
| #if CONFIG_ICONV | |
| # include <iconv.h> | |
| #endif | |
| #include "libavutil/avassert.h" | |
| #include "libavutil/channel_layout.h" | |
| #include "libavutil/common.h" | |
| #include "libavutil/emms.h" | |
| #include "libavutil/frame.h" | |
| #include "libavutil/hwcontext.h" | |
| #include "libavutil/imgutils.h" | |
| #include "libavutil/internal.h" | |
| #include "libavutil/mastering_display_metadata.h" | |
| #include "avcodec.h" | |
| #include "avcodec_internal.h" | |
| #include "bytestream.h" | |
| #include "bsf.h" | |
| #include "codec_desc.h" | |
| #include "codec_internal.h" | |
| #include "decode.h" | |
| #include "hwaccel_internal.h" | |
| #include "hwconfig.h" | |
| #include "internal.h" | |
| #include "packet_internal.h" | |
| #include "refstruct.h" | |
| #include "thread.h" | |
| typedef struct DecodeContext { | |
| AVCodecInternal avci; | |
| /* to prevent infinite loop on errors when draining */ | |
| int nb_draining_errors; | |
| /** | |
| * The caller has submitted a NULL packet on input. | |
| */ | |
| int draining_started; | |
| int64_t pts_correction_num_faulty_pts; /// Number of incorrect PTS values so far | |
| int64_t pts_correction_num_faulty_dts; /// Number of incorrect DTS values so far | |
| int64_t pts_correction_last_pts; /// PTS of the last frame | |
| int64_t pts_correction_last_dts; /// DTS of the last frame | |
| /** | |
| * Bitmask indicating for which side data types we prefer user-supplied | |
| * (global or attached to packets) side data over bytestream. | |
| */ | |
| uint64_t side_data_pref_mask; | |
| } DecodeContext; | |
| static DecodeContext *decode_ctx(AVCodecInternal *avci) | |
| { | |
| return (DecodeContext *)avci; | |
| } | |
| static int apply_param_change(AVCodecContext *avctx, const AVPacket *avpkt) | |
| { | |
| int ret; | |
| size_t size; | |
| const uint8_t *data; | |
| uint32_t flags; | |
| int64_t val; | |
| data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size); | |
| if (!data) | |
| return 0; | |
| if (!(avctx->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE)) { | |
| av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter " | |
| "changes, but PARAM_CHANGE side data was sent to it.\n"); | |
| ret = AVERROR(EINVAL); | |
| goto fail2; | |
| } | |
| if (size < 4) | |
| goto fail; | |
| flags = bytestream_get_le32(&data); | |
| size -= 4; | |
| if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) { | |
| if (size < 4) | |
| goto fail; | |
| val = bytestream_get_le32(&data); | |
| if (val <= 0 || val > INT_MAX) { | |
| av_log(avctx, AV_LOG_ERROR, "Invalid sample rate"); | |
| ret = AVERROR_INVALIDDATA; | |
| goto fail2; | |
| } | |
| avctx->sample_rate = val; | |
| size -= 4; | |
| } | |
| if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) { | |
| if (size < 8) | |
| goto fail; | |
| avctx->width = bytestream_get_le32(&data); | |
| avctx->height = bytestream_get_le32(&data); | |
| size -= 8; | |
| ret = ff_set_dimensions(avctx, avctx->width, avctx->height); | |
| if (ret < 0) | |
| goto fail2; | |
| } | |
| return 0; | |
| fail: | |
| av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n"); | |
| ret = AVERROR_INVALIDDATA; | |
| fail2: | |
| if (ret < 0) { | |
| av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n"); | |
| if (avctx->err_recognition & AV_EF_EXPLODE) | |
| return ret; | |
| } | |
| return 0; | |
| } | |
| static int extract_packet_props(AVCodecInternal *avci, const AVPacket *pkt) | |
| { | |
| int ret = 0; | |
| av_packet_unref(avci->last_pkt_props); | |
| if (pkt) { | |
| ret = av_packet_copy_props(avci->last_pkt_props, pkt); | |
| #if FF_API_FRAME_PKT | |
| if (!ret) | |
| avci->last_pkt_props->stream_index = pkt->size; // Needed for ff_decode_frame_props(). | |
| #endif | |
| } | |
| return ret; | |
| } | |
| static int decode_bsfs_init(AVCodecContext *avctx) | |
| { | |
| AVCodecInternal *avci = avctx->internal; | |
| const FFCodec *const codec = ffcodec(avctx->codec); | |
| int ret; | |
| if (avci->bsf) | |
| return 0; | |
| ret = av_bsf_list_parse_str(codec->bsfs, &avci->bsf); | |
| if (ret < 0) { | |
| av_log(avctx, AV_LOG_ERROR, "Error parsing decoder bitstream filters '%s': %s\n", codec->bsfs, av_err2str(ret)); | |
| if (ret != AVERROR(ENOMEM)) | |
| ret = AVERROR_BUG; | |
| goto fail; | |
| } | |
| /* We do not currently have an API for passing the input timebase into decoders, | |
| * but no filters used here should actually need it. | |
| * So we make up some plausible-looking number (the MPEG 90kHz timebase) */ | |
| avci->bsf->time_base_in = (AVRational){ 1, 90000 }; | |
| ret = avcodec_parameters_from_context(avci->bsf->par_in, avctx); | |
| if (ret < 0) | |
| goto fail; | |
| ret = av_bsf_init(avci->bsf); | |
| if (ret < 0) | |
| goto fail; | |
| return 0; | |
| fail: | |
| av_bsf_free(&avci->bsf); | |
| return ret; | |
| } | |
| static int decode_get_packet(AVCodecContext *avctx, AVPacket *pkt) | |
| { | |
| AVCodecInternal *avci = avctx->internal; | |
| int ret; | |
| ret = av_bsf_receive_packet(avci->bsf, pkt); | |
| if (ret == AVERROR_EOF) | |
| avci->draining = 1; | |
| if (ret < 0) | |
| return ret; | |
| if (!(ffcodec(avctx->codec)->caps_internal & FF_CODEC_CAP_SETS_FRAME_PROPS)) { | |
| ret = extract_packet_props(avctx->internal, pkt); | |
| if (ret < 0) | |
| goto finish; | |
| } | |
| ret = apply_param_change(avctx, pkt); | |
| if (ret < 0) | |
| goto finish; | |
| return 0; | |
| finish: | |
| av_packet_unref(pkt); | |
| return ret; | |
| } | |
| int ff_decode_get_packet(AVCodecContext *avctx, AVPacket *pkt) | |
| { | |
| AVCodecInternal *avci = avctx->internal; | |
| DecodeContext *dc = decode_ctx(avci); | |
| if (avci->draining) | |
| return AVERROR_EOF; | |
| while (1) { | |
| int ret = decode_get_packet(avctx, pkt); | |
| if (ret == AVERROR(EAGAIN) && | |
| (!AVPACKET_IS_EMPTY(avci->buffer_pkt) || dc->draining_started)) { | |
| ret = av_bsf_send_packet(avci->bsf, avci->buffer_pkt); | |
| if (ret < 0) { | |
| av_packet_unref(avci->buffer_pkt); | |
| return ret; | |
| } | |
| continue; | |
| } | |
| return ret; | |
| } | |
| } | |
| /** | |
| * Attempt to guess proper monotonic timestamps for decoded video frames | |
| * which might have incorrect times. Input timestamps may wrap around, in | |
| * which case the output will as well. | |
| * | |
| * @param pts the pts field of the decoded AVPacket, as passed through | |
| * AVFrame.pts | |
| * @param dts the dts field of the decoded AVPacket | |
| * @return one of the input values, may be AV_NOPTS_VALUE | |
| */ | |
| static int64_t guess_correct_pts(DecodeContext *dc, | |
| int64_t reordered_pts, int64_t dts) | |
| { | |
| int64_t pts = AV_NOPTS_VALUE; | |
| if (dts != AV_NOPTS_VALUE) { | |
| dc->pts_correction_num_faulty_dts += dts <= dc->pts_correction_last_dts; | |
| dc->pts_correction_last_dts = dts; | |
| } else if (reordered_pts != AV_NOPTS_VALUE) | |
| dc->pts_correction_last_dts = reordered_pts; | |
| if (reordered_pts != AV_NOPTS_VALUE) { | |
| dc->pts_correction_num_faulty_pts += reordered_pts <= dc->pts_correction_last_pts; | |
| dc->pts_correction_last_pts = reordered_pts; | |
| } else if(dts != AV_NOPTS_VALUE) | |
| dc->pts_correction_last_pts = dts; | |
| if ((dc->pts_correction_num_faulty_pts<=dc->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE) | |
| && reordered_pts != AV_NOPTS_VALUE) | |
| pts = reordered_pts; | |
| else | |
| pts = dts; | |
| return pts; | |
| } | |
| static int discard_samples(AVCodecContext *avctx, AVFrame *frame, int64_t *discarded_samples) | |
| { | |
| AVCodecInternal *avci = avctx->internal; | |
| AVFrameSideData *side; | |
| uint32_t discard_padding = 0; | |
| uint8_t skip_reason = 0; | |
| uint8_t discard_reason = 0; | |
| side = av_frame_get_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES); | |
| if (side && side->size >= 10) { | |
| avci->skip_samples = AV_RL32(side->data); | |
| avci->skip_samples = FFMAX(0, avci->skip_samples); | |
| discard_padding = AV_RL32(side->data + 4); | |
| av_log(avctx, AV_LOG_DEBUG, "skip %d / discard %d samples due to side data\n", | |
| avci->skip_samples, (int)discard_padding); | |
| skip_reason = AV_RL8(side->data + 8); | |
| discard_reason = AV_RL8(side->data + 9); | |
| } | |
| if ((avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) { | |
| if (!side && (avci->skip_samples || discard_padding)) | |
| side = av_frame_new_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES, 10); | |
| if (side && (avci->skip_samples || discard_padding)) { | |
| AV_WL32(side->data, avci->skip_samples); | |
| AV_WL32(side->data + 4, discard_padding); | |
| AV_WL8(side->data + 8, skip_reason); | |
| AV_WL8(side->data + 9, discard_reason); | |
| avci->skip_samples = 0; | |
| } | |
| return 0; | |
| } | |
| av_frame_remove_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES); | |
| if ((frame->flags & AV_FRAME_FLAG_DISCARD)) { | |
| avci->skip_samples = FFMAX(0, avci->skip_samples - frame->nb_samples); | |
| *discarded_samples += frame->nb_samples; | |
| return AVERROR(EAGAIN); | |
| } | |
| if (avci->skip_samples > 0) { | |
| if (frame->nb_samples <= avci->skip_samples){ | |
| *discarded_samples += frame->nb_samples; | |
| avci->skip_samples -= frame->nb_samples; | |
| av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n", | |
| avci->skip_samples); | |
| return AVERROR(EAGAIN); | |
| } else { | |
| av_samples_copy(frame->extended_data, frame->extended_data, 0, avci->skip_samples, | |
| frame->nb_samples - avci->skip_samples, avctx->ch_layout.nb_channels, frame->format); | |
| if (avctx->pkt_timebase.num && avctx->sample_rate) { | |
| int64_t diff_ts = av_rescale_q(avci->skip_samples, | |
| (AVRational){1, avctx->sample_rate}, | |
| avctx->pkt_timebase); | |
| if (frame->pts != AV_NOPTS_VALUE) | |
| frame->pts += diff_ts; | |
| if (frame->pkt_dts != AV_NOPTS_VALUE) | |
| frame->pkt_dts += diff_ts; | |
| if (frame->duration >= diff_ts) | |
| frame->duration -= diff_ts; | |
| } else | |
| av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n"); | |
| av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n", | |
| avci->skip_samples, frame->nb_samples); | |
| *discarded_samples += avci->skip_samples; | |
| frame->nb_samples -= avci->skip_samples; | |
| avci->skip_samples = 0; | |
| } | |
| } | |
| if (discard_padding > 0 && discard_padding <= frame->nb_samples) { | |
| if (discard_padding == frame->nb_samples) { | |
| *discarded_samples += frame->nb_samples; | |
| return AVERROR(EAGAIN); | |
| } else { | |
| if (avctx->pkt_timebase.num && avctx->sample_rate) { | |
| int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding, | |
| (AVRational){1, avctx->sample_rate}, | |
| avctx->pkt_timebase); | |
| frame->duration = diff_ts; | |
| } else | |
| av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n"); | |
| av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n", | |
| (int)discard_padding, frame->nb_samples); | |
| frame->nb_samples -= discard_padding; | |
| } | |
| } | |
| return 0; | |
| } | |
| /* | |
| * The core of the receive_frame_wrapper for the decoders implementing | |
| * the simple API. Certain decoders might consume partial packets without | |
| * returning any output, so this function needs to be called in a loop until it | |
| * returns EAGAIN. | |
| **/ | |
| static inline int decode_simple_internal(AVCodecContext *avctx, AVFrame *frame, int64_t *discarded_samples) | |
| { | |
| AVCodecInternal *avci = avctx->internal; | |
| AVPacket *const pkt = avci->in_pkt; | |
| const FFCodec *const codec = ffcodec(avctx->codec); | |
| int got_frame, consumed; | |
| int ret; | |
| if (!pkt->data && !avci->draining) { | |
| av_packet_unref(pkt); | |
| ret = ff_decode_get_packet(avctx, pkt); | |
| if (ret < 0 && ret != AVERROR_EOF) | |
| return ret; | |
| } | |
| // Some codecs (at least wma lossless) will crash when feeding drain packets | |
| // after EOF was signaled. | |
| if (avci->draining_done) | |
| return AVERROR_EOF; | |
| if (!pkt->data && | |
| !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY || | |
| avctx->active_thread_type & FF_THREAD_FRAME)) | |
| return AVERROR_EOF; | |
| got_frame = 0; | |
| if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) { | |
| consumed = ff_thread_decode_frame(avctx, frame, &got_frame, pkt); | |
| } else { | |
| consumed = codec->cb.decode(avctx, frame, &got_frame, pkt); | |
| if (!(codec->caps_internal & FF_CODEC_CAP_SETS_PKT_DTS)) | |
| frame->pkt_dts = pkt->dts; | |
| if (avctx->codec->type == AVMEDIA_TYPE_VIDEO) { | |
| #if FF_API_FRAME_PKT | |
| FF_DISABLE_DEPRECATION_WARNINGS | |
| if(!avctx->has_b_frames) | |
| frame->pkt_pos = pkt->pos; | |
| FF_ENABLE_DEPRECATION_WARNINGS | |
| #endif | |
| } | |
| } | |
| emms_c(); | |
| if (avctx->codec->type == AVMEDIA_TYPE_VIDEO) { | |
| ret = (!got_frame || frame->flags & AV_FRAME_FLAG_DISCARD) | |
| ? AVERROR(EAGAIN) | |
| : 0; | |
| } else if (avctx->codec->type == AVMEDIA_TYPE_AUDIO) { | |
| ret = !got_frame ? AVERROR(EAGAIN) | |
| : discard_samples(avctx, frame, discarded_samples); | |
| } else | |
| av_assert0(0); | |
| if (ret == AVERROR(EAGAIN)) | |
| av_frame_unref(frame); | |
| // FF_CODEC_CB_TYPE_DECODE decoders must not return AVERROR EAGAIN | |
| // code later will add AVERROR(EAGAIN) to a pointer | |
| av_assert0(consumed != AVERROR(EAGAIN)); | |
| if (consumed < 0) | |
| ret = consumed; | |
| if (consumed >= 0 && avctx->codec->type == AVMEDIA_TYPE_VIDEO) | |
| consumed = pkt->size; | |
| if (!ret) | |
| av_assert0(frame->buf[0]); | |
| if (ret == AVERROR(EAGAIN)) | |
| ret = 0; | |
| /* do not stop draining when got_frame != 0 or ret < 0 */ | |
| if (avci->draining && !got_frame) { | |
| if (ret < 0) { | |
| /* prevent infinite loop if a decoder wrongly always return error on draining */ | |
| /* reasonable nb_errors_max = maximum b frames + thread count */ | |
| int nb_errors_max = 20 + (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME ? | |
| avctx->thread_count : 1); | |
| if (decode_ctx(avci)->nb_draining_errors++ >= nb_errors_max) { | |
| av_log(avctx, AV_LOG_ERROR, "Too many errors when draining, this is a bug. " | |
| "Stop draining and force EOF.\n"); | |
| avci->draining_done = 1; | |
| ret = AVERROR_BUG; | |
| } | |
| } else { | |
| avci->draining_done = 1; | |
| } | |
| } | |
| if (consumed >= pkt->size || ret < 0) { | |
| av_packet_unref(pkt); | |
| } else { | |
| pkt->data += consumed; | |
| pkt->size -= consumed; | |
| pkt->pts = AV_NOPTS_VALUE; | |
| pkt->dts = AV_NOPTS_VALUE; | |
| if (!(codec->caps_internal & FF_CODEC_CAP_SETS_FRAME_PROPS)) { | |
| #if FF_API_FRAME_PKT | |
| // See extract_packet_props() comment. | |
| avci->last_pkt_props->stream_index = avci->last_pkt_props->stream_index - consumed; | |
| #endif | |
| avci->last_pkt_props->pts = AV_NOPTS_VALUE; | |
| avci->last_pkt_props->dts = AV_NOPTS_VALUE; | |
| } | |
| } | |
| return ret; | |
| } | |
| #if CONFIG_LCMS2 | |
| static int detect_colorspace(AVCodecContext *avctx, AVFrame *frame) | |
| { | |
| AVCodecInternal *avci = avctx->internal; | |
| enum AVColorTransferCharacteristic trc; | |
| AVColorPrimariesDesc coeffs; | |
| enum AVColorPrimaries prim; | |
| cmsHPROFILE profile; | |
| AVFrameSideData *sd; | |
| int ret; | |
| if (!(avctx->flags2 & AV_CODEC_FLAG2_ICC_PROFILES)) | |
| return 0; | |
| sd = av_frame_get_side_data(frame, AV_FRAME_DATA_ICC_PROFILE); | |
| if (!sd || !sd->size) | |
| return 0; | |
| if (!avci->icc.avctx) { | |
| ret = ff_icc_context_init(&avci->icc, avctx); | |
| if (ret < 0) | |
| return ret; | |
| } | |
| profile = cmsOpenProfileFromMemTHR(avci->icc.ctx, sd->data, sd->size); | |
| if (!profile) | |
| return AVERROR_INVALIDDATA; | |
| ret = ff_icc_profile_sanitize(&avci->icc, profile); | |
| if (!ret) | |
| ret = ff_icc_profile_read_primaries(&avci->icc, profile, &coeffs); | |
| if (!ret) | |
| ret = ff_icc_profile_detect_transfer(&avci->icc, profile, &trc); | |
| cmsCloseProfile(profile); | |
| if (ret < 0) | |
| return ret; | |
| prim = av_csp_primaries_id_from_desc(&coeffs); | |
| if (prim != AVCOL_PRI_UNSPECIFIED) | |
| frame->color_primaries = prim; | |
| if (trc != AVCOL_TRC_UNSPECIFIED) | |
| frame->color_trc = trc; | |
| return 0; | |
| } | |
| #else /* !CONFIG_LCMS2 */ | |
| static int detect_colorspace(av_unused AVCodecContext *c, av_unused AVFrame *f) | |
| { | |
| return 0; | |
| } | |
| #endif | |
| static int fill_frame_props(const AVCodecContext *avctx, AVFrame *frame) | |
| { | |
| int ret; | |
| if (frame->color_primaries == AVCOL_PRI_UNSPECIFIED) | |
| frame->color_primaries = avctx->color_primaries; | |
| if (frame->color_trc == AVCOL_TRC_UNSPECIFIED) | |
| frame->color_trc = avctx->color_trc; | |
| if (frame->colorspace == AVCOL_SPC_UNSPECIFIED) | |
| frame->colorspace = avctx->colorspace; | |
| if (frame->color_range == AVCOL_RANGE_UNSPECIFIED) | |
| frame->color_range = avctx->color_range; | |
| if (frame->chroma_location == AVCHROMA_LOC_UNSPECIFIED) | |
| frame->chroma_location = avctx->chroma_sample_location; | |
| if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) { | |
| if (!frame->sample_aspect_ratio.num) frame->sample_aspect_ratio = avctx->sample_aspect_ratio; | |
| if (frame->format == AV_PIX_FMT_NONE) frame->format = avctx->pix_fmt; | |
| } else if (avctx->codec->type == AVMEDIA_TYPE_AUDIO) { | |
| if (frame->format == AV_SAMPLE_FMT_NONE) | |
| frame->format = avctx->sample_fmt; | |
| if (!frame->ch_layout.nb_channels) { | |
| ret = av_channel_layout_copy(&frame->ch_layout, &avctx->ch_layout); | |
| if (ret < 0) | |
| return ret; | |
| } | |
| if (!frame->sample_rate) | |
| frame->sample_rate = avctx->sample_rate; | |
| } | |
| return 0; | |
| } | |
| static int decode_simple_receive_frame(AVCodecContext *avctx, AVFrame *frame) | |
| { | |
| int ret; | |
| int64_t discarded_samples = 0; | |
| while (!frame->buf[0]) { | |
| if (discarded_samples > avctx->max_samples) | |
| return AVERROR(EAGAIN); | |
| ret = decode_simple_internal(avctx, frame, &discarded_samples); | |
| if (ret < 0) | |
| return ret; | |
| } | |
| return 0; | |
| } | |
| static int decode_receive_frame_internal(AVCodecContext *avctx, AVFrame *frame) | |
| { | |
| AVCodecInternal *avci = avctx->internal; | |
| DecodeContext *dc = decode_ctx(avci); | |
| const FFCodec *const codec = ffcodec(avctx->codec); | |
| int ret, ok; | |
| av_assert0(!frame->buf[0]); | |
| if (codec->cb_type == FF_CODEC_CB_TYPE_RECEIVE_FRAME) { | |
| ret = codec->cb.receive_frame(avctx, frame); | |
| emms_c(); | |
| if (!ret) { | |
| if (avctx->codec->type == AVMEDIA_TYPE_VIDEO) | |
| ret = (frame->flags & AV_FRAME_FLAG_DISCARD) ? AVERROR(EAGAIN) : 0; | |
| else if (avctx->codec->type == AVMEDIA_TYPE_AUDIO) { | |
| int64_t discarded_samples = 0; | |
| ret = discard_samples(avctx, frame, &discarded_samples); | |
| } | |
| } | |
| } else | |
| ret = decode_simple_receive_frame(avctx, frame); | |
| if (ret == AVERROR_EOF) | |
| avci->draining_done = 1; | |
| /* preserve ret */ | |
| ok = detect_colorspace(avctx, frame); | |
| if (ok < 0) { | |
| av_frame_unref(frame); | |
| return ok; | |
| } | |
| if (!ret) { | |
| if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) { | |
| if (!frame->width) | |
| frame->width = avctx->width; | |
| if (!frame->height) | |
| frame->height = avctx->height; | |
| } else | |
| frame->flags |= AV_FRAME_FLAG_KEY; | |
| ret = fill_frame_props(avctx, frame); | |
| if (ret < 0) { | |
| av_frame_unref(frame); | |
| return ret; | |
| } | |
| #if FF_API_FRAME_KEY | |
| FF_DISABLE_DEPRECATION_WARNINGS | |
| frame->key_frame = !!(frame->flags & AV_FRAME_FLAG_KEY); | |
| FF_ENABLE_DEPRECATION_WARNINGS | |
| #endif | |
| #if FF_API_INTERLACED_FRAME | |
| FF_DISABLE_DEPRECATION_WARNINGS | |
| frame->interlaced_frame = !!(frame->flags & AV_FRAME_FLAG_INTERLACED); | |
| frame->top_field_first = !!(frame->flags & AV_FRAME_FLAG_TOP_FIELD_FIRST); | |
| FF_ENABLE_DEPRECATION_WARNINGS | |
| #endif | |
| frame->best_effort_timestamp = guess_correct_pts(dc, | |
| frame->pts, | |
| frame->pkt_dts); | |
| /* the only case where decode data is not set should be decoders | |
| * that do not call ff_get_buffer() */ | |
| av_assert0((frame->private_ref && frame->private_ref->size == sizeof(FrameDecodeData)) || | |
| !(avctx->codec->capabilities & AV_CODEC_CAP_DR1)); | |
| if (frame->private_ref) { | |
| FrameDecodeData *fdd = (FrameDecodeData*)frame->private_ref->data; | |
| if (fdd->post_process) { | |
| ret = fdd->post_process(avctx, frame); | |
| if (ret < 0) { | |
| av_frame_unref(frame); | |
| return ret; | |
| } | |
| } | |
| } | |
| } | |
| /* free the per-frame decode data */ | |
| av_buffer_unref(&frame->private_ref); | |
| return ret; | |
| } | |
| int attribute_align_arg avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt) | |
| { | |
| AVCodecInternal *avci = avctx->internal; | |
| DecodeContext *dc = decode_ctx(avci); | |
| int ret; | |
| if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec)) | |
| return AVERROR(EINVAL); | |
| if (dc->draining_started) | |
| return AVERROR_EOF; | |
| if (avpkt && !avpkt->size && avpkt->data) | |
| return AVERROR(EINVAL); | |
| if (avpkt && (avpkt->data || avpkt->side_data_elems)) { | |
| if (!AVPACKET_IS_EMPTY(avci->buffer_pkt)) | |
| return AVERROR(EAGAIN); | |
| ret = av_packet_ref(avci->buffer_pkt, avpkt); | |
| if (ret < 0) | |
| return ret; | |
| } else | |
| dc->draining_started = 1; | |
| if (!avci->buffer_frame->buf[0] && !dc->draining_started) { | |
| ret = decode_receive_frame_internal(avctx, avci->buffer_frame); | |
| if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) | |
| return ret; | |
| } | |
| return 0; | |
| } | |
| static int apply_cropping(AVCodecContext *avctx, AVFrame *frame) | |
| { | |
| /* make sure we are noisy about decoders returning invalid cropping data */ | |
| if (frame->crop_left >= INT_MAX - frame->crop_right || | |
| frame->crop_top >= INT_MAX - frame->crop_bottom || | |
| (frame->crop_left + frame->crop_right) >= frame->width || | |
| (frame->crop_top + frame->crop_bottom) >= frame->height) { | |
| av_log(avctx, AV_LOG_WARNING, | |
| "Invalid cropping information set by a decoder: " | |
| "%"SIZE_SPECIFIER"/%"SIZE_SPECIFIER"/%"SIZE_SPECIFIER"/%"SIZE_SPECIFIER" " | |
| "(frame size %dx%d). This is a bug, please report it\n", | |
| frame->crop_left, frame->crop_right, frame->crop_top, frame->crop_bottom, | |
| frame->width, frame->height); | |
| frame->crop_left = 0; | |
| frame->crop_right = 0; | |
| frame->crop_top = 0; | |
| frame->crop_bottom = 0; | |
| return 0; | |
| } | |
| if (!avctx->apply_cropping) | |
| return 0; | |
| return av_frame_apply_cropping(frame, avctx->flags & AV_CODEC_FLAG_UNALIGNED ? | |
| AV_FRAME_CROP_UNALIGNED : 0); | |
| } | |
| // make sure frames returned to the caller are valid | |
| static int frame_validate(AVCodecContext *avctx, AVFrame *frame) | |
| { | |
| if (!frame->buf[0] || frame->format < 0) | |
| goto fail; | |
| switch (avctx->codec_type) { | |
| case AVMEDIA_TYPE_VIDEO: | |
| if (frame->width <= 0 || frame->height <= 0) | |
| goto fail; | |
| break; | |
| case AVMEDIA_TYPE_AUDIO: | |
| if (!av_channel_layout_check(&frame->ch_layout) || | |
| frame->sample_rate <= 0) | |
| goto fail; | |
| break; | |
| default: av_assert0(0); | |
| } | |
| return 0; | |
| fail: | |
| av_log(avctx, AV_LOG_ERROR, "An invalid frame was output by a decoder. " | |
| "This is a bug, please report it.\n"); | |
| return AVERROR_BUG; | |
| } | |
| int ff_decode_receive_frame(AVCodecContext *avctx, AVFrame *frame) | |
| { | |
| AVCodecInternal *avci = avctx->internal; | |
| int ret; | |
| if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec)) | |
| return AVERROR(EINVAL); | |
| if (avci->buffer_frame->buf[0]) { | |
| av_frame_move_ref(frame, avci->buffer_frame); | |
| } else { | |
| ret = decode_receive_frame_internal(avctx, frame); | |
| if (ret < 0) | |
| return ret; | |
| } | |
| ret = frame_validate(avctx, frame); | |
| if (ret < 0) | |
| goto fail; | |
| if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) { | |
| ret = apply_cropping(avctx, frame); | |
| if (ret < 0) | |
| goto fail; | |
| } | |
| avctx->frame_num++; | |
| #if FF_API_DROPCHANGED | |
| if (avctx->flags & AV_CODEC_FLAG_DROPCHANGED) { | |
| if (avctx->frame_num == 1) { | |
| avci->initial_format = frame->format; | |
| switch(avctx->codec_type) { | |
| case AVMEDIA_TYPE_VIDEO: | |
| avci->initial_width = frame->width; | |
| avci->initial_height = frame->height; | |
| break; | |
| case AVMEDIA_TYPE_AUDIO: | |
| avci->initial_sample_rate = frame->sample_rate ? frame->sample_rate : | |
| avctx->sample_rate; | |
| ret = av_channel_layout_copy(&avci->initial_ch_layout, &frame->ch_layout); | |
| if (ret < 0) | |
| goto fail; | |
| break; | |
| } | |
| } | |
| if (avctx->frame_num > 1) { | |
| int changed = avci->initial_format != frame->format; | |
| switch(avctx->codec_type) { | |
| case AVMEDIA_TYPE_VIDEO: | |
| changed |= avci->initial_width != frame->width || | |
| avci->initial_height != frame->height; | |
| break; | |
| case AVMEDIA_TYPE_AUDIO: | |
| changed |= avci->initial_sample_rate != frame->sample_rate || | |
| avci->initial_sample_rate != avctx->sample_rate || | |
| av_channel_layout_compare(&avci->initial_ch_layout, &frame->ch_layout); | |
| break; | |
| } | |
| if (changed) { | |
| avci->changed_frames_dropped++; | |
| av_log(avctx, AV_LOG_INFO, "dropped changed frame #%"PRId64" pts %"PRId64 | |
| " drop count: %d \n", | |
| avctx->frame_num, frame->pts, | |
| avci->changed_frames_dropped); | |
| ret = AVERROR_INPUT_CHANGED; | |
| goto fail; | |
| } | |
| } | |
| } | |
| #endif | |
| return 0; | |
| fail: | |
| av_frame_unref(frame); | |
| return ret; | |
| } | |
| static void get_subtitle_defaults(AVSubtitle *sub) | |
| { | |
| memset(sub, 0, sizeof(*sub)); | |
| sub->pts = AV_NOPTS_VALUE; | |
| } | |
| #define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */ | |
| static int recode_subtitle(AVCodecContext *avctx, const AVPacket **outpkt, | |
| const AVPacket *inpkt, AVPacket *buf_pkt) | |
| { | |
| #if CONFIG_ICONV | |
| iconv_t cd = (iconv_t)-1; | |
| int ret = 0; | |
| char *inb, *outb; | |
| size_t inl, outl; | |
| #endif | |
| if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0) { | |
| *outpkt = inpkt; | |
| return 0; | |
| } | |
| #if CONFIG_ICONV | |
| inb = inpkt->data; | |
| inl = inpkt->size; | |
| if (inl >= INT_MAX / UTF8_MAX_BYTES - AV_INPUT_BUFFER_PADDING_SIZE) { | |
| av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n"); | |
| return AVERROR(ERANGE); | |
| } | |
| cd = iconv_open("UTF-8", avctx->sub_charenc); | |
| av_assert0(cd != (iconv_t)-1); | |
| ret = av_new_packet(buf_pkt, inl * UTF8_MAX_BYTES); | |
| if (ret < 0) | |
| goto end; | |
| ret = av_packet_copy_props(buf_pkt, inpkt); | |
| if (ret < 0) | |
| goto end; | |
| outb = buf_pkt->data; | |
| outl = buf_pkt->size; | |
| if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 || | |
| iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 || | |
| outl >= buf_pkt->size || inl != 0) { | |
| ret = FFMIN(AVERROR(errno), -1); | |
| av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" " | |
| "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc); | |
| goto end; | |
| } | |
| buf_pkt->size -= outl; | |
| memset(buf_pkt->data + buf_pkt->size, 0, outl); | |
| *outpkt = buf_pkt; | |
| ret = 0; | |
| end: | |
| if (ret < 0) | |
| av_packet_unref(buf_pkt); | |
| if (cd != (iconv_t)-1) | |
| iconv_close(cd); | |
| return ret; | |
| #else | |
| av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv"); | |
| return AVERROR(EINVAL); | |
| #endif | |
| } | |
| static int utf8_check(const uint8_t *str) | |
| { | |
| const uint8_t *byte; | |
| uint32_t codepoint, min; | |
| while (*str) { | |
| byte = str; | |
| GET_UTF8(codepoint, *(byte++), return 0;); | |
| min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 : | |
| 1 << (5 * (byte - str) - 4); | |
| if (codepoint < min || codepoint >= 0x110000 || | |
| codepoint == 0xFFFE /* BOM */ || | |
| codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */) | |
| return 0; | |
| str = byte; | |
| } | |
| return 1; | |
| } | |
| int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub, | |
| int *got_sub_ptr, const AVPacket *avpkt) | |
| { | |
| int ret = 0; | |
| if (!avpkt->data && avpkt->size) { | |
| av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n"); | |
| return AVERROR(EINVAL); | |
| } | |
| if (!avctx->codec) | |
| return AVERROR(EINVAL); | |
| if (ffcodec(avctx->codec)->cb_type != FF_CODEC_CB_TYPE_DECODE_SUB) { | |
| av_log(avctx, AV_LOG_ERROR, "Codec not subtitle decoder\n"); | |
| return AVERROR(EINVAL); | |
| } | |
| *got_sub_ptr = 0; | |
| get_subtitle_defaults(sub); | |
| if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size) { | |
| AVCodecInternal *avci = avctx->internal; | |
| const AVPacket *pkt; | |
| ret = recode_subtitle(avctx, &pkt, avpkt, avci->buffer_pkt); | |
| if (ret < 0) | |
| return ret; | |
| if (avctx->pkt_timebase.num && avpkt->pts != AV_NOPTS_VALUE) | |
| sub->pts = av_rescale_q(avpkt->pts, | |
| avctx->pkt_timebase, AV_TIME_BASE_Q); | |
| ret = ffcodec(avctx->codec)->cb.decode_sub(avctx, sub, got_sub_ptr, pkt); | |
| if (pkt == avci->buffer_pkt) // did we recode? | |
| av_packet_unref(avci->buffer_pkt); | |
| if (ret < 0) { | |
| *got_sub_ptr = 0; | |
| avsubtitle_free(sub); | |
| return ret; | |
| } | |
| av_assert1(!sub->num_rects || *got_sub_ptr); | |
| if (sub->num_rects && !sub->end_display_time && avpkt->duration && | |
| avctx->pkt_timebase.num) { | |
| AVRational ms = { 1, 1000 }; | |
| sub->end_display_time = av_rescale_q(avpkt->duration, | |
| avctx->pkt_timebase, ms); | |
| } | |
| if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) | |
| sub->format = 0; | |
| else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB) | |
| sub->format = 1; | |
| for (unsigned i = 0; i < sub->num_rects; i++) { | |
| if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_IGNORE && | |
| sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) { | |
| av_log(avctx, AV_LOG_ERROR, | |
| "Invalid UTF-8 in decoded subtitles text; " | |
| "maybe missing -sub_charenc option\n"); | |
| avsubtitle_free(sub); | |
| *got_sub_ptr = 0; | |
| return AVERROR_INVALIDDATA; | |
| } | |
| } | |
| if (*got_sub_ptr) | |
| avctx->frame_num++; | |
| } | |
| return ret; | |
| } | |
| enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *avctx, | |
| const enum AVPixelFormat *fmt) | |
| { | |
| const AVPixFmtDescriptor *desc; | |
| const AVCodecHWConfig *config; | |
| int i, n; | |
| // If a device was supplied when the codec was opened, assume that the | |
| // user wants to use it. | |
| if (avctx->hw_device_ctx && ffcodec(avctx->codec)->hw_configs) { | |
| AVHWDeviceContext *device_ctx = | |
| (AVHWDeviceContext*)avctx->hw_device_ctx->data; | |
| for (i = 0;; i++) { | |
| config = &ffcodec(avctx->codec)->hw_configs[i]->public; | |
| if (!config) | |
| break; | |
| if (!(config->methods & | |
| AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX)) | |
| continue; | |
| if (device_ctx->type != config->device_type) | |
| continue; | |
| for (n = 0; fmt[n] != AV_PIX_FMT_NONE; n++) { | |
| if (config->pix_fmt == fmt[n]) | |
| return fmt[n]; | |
| } | |
| } | |
| } | |
| // No device or other setup, so we have to choose from things which | |
| // don't any other external information. | |
| // If the last element of the list is a software format, choose it | |
| // (this should be best software format if any exist). | |
| for (n = 0; fmt[n] != AV_PIX_FMT_NONE; n++); | |
| desc = av_pix_fmt_desc_get(fmt[n - 1]); | |
| if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL)) | |
| return fmt[n - 1]; | |
| // Finally, traverse the list in order and choose the first entry | |
| // with no external dependencies (if there is no hardware configuration | |
| // information available then this just picks the first entry). | |
| for (n = 0; fmt[n] != AV_PIX_FMT_NONE; n++) { | |
| for (i = 0;; i++) { | |
| config = avcodec_get_hw_config(avctx->codec, i); | |
| if (!config) | |
| break; | |
| if (config->pix_fmt == fmt[n]) | |
| break; | |
| } | |
| if (!config) { | |
| // No specific config available, so the decoder must be able | |
| // to handle this format without any additional setup. | |
| return fmt[n]; | |
| } | |
| if (config->methods & AV_CODEC_HW_CONFIG_METHOD_INTERNAL) { | |
| // Usable with only internal setup. | |
| return fmt[n]; | |
| } | |
| } | |
| // Nothing is usable, give up. | |
| return AV_PIX_FMT_NONE; | |
| } | |
| int ff_decode_get_hw_frames_ctx(AVCodecContext *avctx, | |
| enum AVHWDeviceType dev_type) | |
| { | |
| AVHWDeviceContext *device_ctx; | |
| AVHWFramesContext *frames_ctx; | |
| int ret; | |
| if (!avctx->hwaccel) | |
| return AVERROR(ENOSYS); | |
| if (avctx->hw_frames_ctx) | |
| return 0; | |
| if (!avctx->hw_device_ctx) { | |
| av_log(avctx, AV_LOG_ERROR, "A hardware frames or device context is " | |
| "required for hardware accelerated decoding.\n"); | |
| return AVERROR(EINVAL); | |
| } | |
| device_ctx = (AVHWDeviceContext *)avctx->hw_device_ctx->data; | |
| if (device_ctx->type != dev_type) { | |
| av_log(avctx, AV_LOG_ERROR, "Device type %s expected for hardware " | |
| "decoding, but got %s.\n", av_hwdevice_get_type_name(dev_type), | |
| av_hwdevice_get_type_name(device_ctx->type)); | |
| return AVERROR(EINVAL); | |
| } | |
| ret = avcodec_get_hw_frames_parameters(avctx, | |
| avctx->hw_device_ctx, | |
| avctx->hwaccel->pix_fmt, | |
| &avctx->hw_frames_ctx); | |
| if (ret < 0) | |
| return ret; | |
| frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data; | |
| if (frames_ctx->initial_pool_size) { | |
| // We guarantee 4 base work surfaces. The function above guarantees 1 | |
| // (the absolute minimum), so add the missing count. | |
| frames_ctx->initial_pool_size += 3; | |
| } | |
| ret = av_hwframe_ctx_init(avctx->hw_frames_ctx); | |
| if (ret < 0) { | |
| av_buffer_unref(&avctx->hw_frames_ctx); | |
| return ret; | |
| } | |
| return 0; | |
| } | |
| int avcodec_get_hw_frames_parameters(AVCodecContext *avctx, | |
| AVBufferRef *device_ref, | |
| enum AVPixelFormat hw_pix_fmt, | |
| AVBufferRef **out_frames_ref) | |
| { | |
| AVBufferRef *frames_ref = NULL; | |
| const AVCodecHWConfigInternal *hw_config; | |
| const FFHWAccel *hwa; | |
| int i, ret; | |
| for (i = 0;; i++) { | |
| hw_config = ffcodec(avctx->codec)->hw_configs[i]; | |
| if (!hw_config) | |
| return AVERROR(ENOENT); | |
| if (hw_config->public.pix_fmt == hw_pix_fmt) | |
| break; | |
| } | |
| hwa = hw_config->hwaccel; | |
| if (!hwa || !hwa->frame_params) | |
| return AVERROR(ENOENT); | |
| frames_ref = av_hwframe_ctx_alloc(device_ref); | |
| if (!frames_ref) | |
| return AVERROR(ENOMEM); | |
| if (!avctx->internal->hwaccel_priv_data) { | |
| avctx->internal->hwaccel_priv_data = | |
| av_mallocz(hwa->priv_data_size); | |
| if (!avctx->internal->hwaccel_priv_data) { | |
| av_buffer_unref(&frames_ref); | |
| return AVERROR(ENOMEM); | |
| } | |
| } | |
| ret = hwa->frame_params(avctx, frames_ref); | |
| if (ret >= 0) { | |
| AVHWFramesContext *frames_ctx = (AVHWFramesContext*)frames_ref->data; | |
| if (frames_ctx->initial_pool_size) { | |
| // If the user has requested that extra output surfaces be | |
| // available then add them here. | |
| if (avctx->extra_hw_frames > 0) | |
| frames_ctx->initial_pool_size += avctx->extra_hw_frames; | |
| // If frame threading is enabled then an extra surface per thread | |
| // is also required. | |
| if (avctx->active_thread_type & FF_THREAD_FRAME) | |
| frames_ctx->initial_pool_size += avctx->thread_count; | |
| } | |
| *out_frames_ref = frames_ref; | |
| } else { | |
| av_buffer_unref(&frames_ref); | |
| } | |
| return ret; | |
| } | |
| static int hwaccel_init(AVCodecContext *avctx, | |
| const FFHWAccel *hwaccel) | |
| { | |
| int err; | |
| if (hwaccel->p.capabilities & AV_HWACCEL_CODEC_CAP_EXPERIMENTAL && | |
| avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) { | |
| av_log(avctx, AV_LOG_WARNING, "Ignoring experimental hwaccel: %s\n", | |
| hwaccel->p.name); | |
| return AVERROR_PATCHWELCOME; | |
| } | |
| if (!avctx->internal->hwaccel_priv_data && hwaccel->priv_data_size) { | |
| avctx->internal->hwaccel_priv_data = | |
| av_mallocz(hwaccel->priv_data_size); | |
| if (!avctx->internal->hwaccel_priv_data) | |
| return AVERROR(ENOMEM); | |
| } | |
| avctx->hwaccel = &hwaccel->p; | |
| if (hwaccel->init) { | |
| err = hwaccel->init(avctx); | |
| if (err < 0) { | |
| av_log(avctx, AV_LOG_ERROR, "Failed setup for format %s: " | |
| "hwaccel initialisation returned error.\n", | |
| av_get_pix_fmt_name(hwaccel->p.pix_fmt)); | |
| av_freep(&avctx->internal->hwaccel_priv_data); | |
| avctx->hwaccel = NULL; | |
| return err; | |
| } | |
| } | |
| return 0; | |
| } | |
| void ff_hwaccel_uninit(AVCodecContext *avctx) | |
| { | |
| if (FF_HW_HAS_CB(avctx, uninit)) | |
| FF_HW_SIMPLE_CALL(avctx, uninit); | |
| av_freep(&avctx->internal->hwaccel_priv_data); | |
| avctx->hwaccel = NULL; | |
| av_buffer_unref(&avctx->hw_frames_ctx); | |
| } | |
| int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt) | |
| { | |
| const AVPixFmtDescriptor *desc; | |
| enum AVPixelFormat *choices; | |
| enum AVPixelFormat ret, user_choice; | |
| const AVCodecHWConfigInternal *hw_config; | |
| const AVCodecHWConfig *config; | |
| int i, n, err; | |
| // Find end of list. | |
| for (n = 0; fmt[n] != AV_PIX_FMT_NONE; n++); | |
| // Must contain at least one entry. | |
| av_assert0(n >= 1); | |
| // If a software format is available, it must be the last entry. | |
| desc = av_pix_fmt_desc_get(fmt[n - 1]); | |
| if (desc->flags & AV_PIX_FMT_FLAG_HWACCEL) { | |
| // No software format is available. | |
| } else { | |
| avctx->sw_pix_fmt = fmt[n - 1]; | |
| } | |
| choices = av_memdup(fmt, (n + 1) * sizeof(*choices)); | |
| if (!choices) | |
| return AV_PIX_FMT_NONE; | |
| for (;;) { | |
| // Remove the previous hwaccel, if there was one. | |
| ff_hwaccel_uninit(avctx); | |
| user_choice = avctx->get_format(avctx, choices); | |
| if (user_choice == AV_PIX_FMT_NONE) { | |
| // Explicitly chose nothing, give up. | |
| ret = AV_PIX_FMT_NONE; | |
| break; | |
| } | |
| desc = av_pix_fmt_desc_get(user_choice); | |
| if (!desc) { | |
| av_log(avctx, AV_LOG_ERROR, "Invalid format returned by " | |
| "get_format() callback.\n"); | |
| ret = AV_PIX_FMT_NONE; | |
| break; | |
| } | |
| av_log(avctx, AV_LOG_DEBUG, "Format %s chosen by get_format().\n", | |
| desc->name); | |
| for (i = 0; i < n; i++) { | |
| if (choices[i] == user_choice) | |
| break; | |
| } | |
| if (i == n) { | |
| av_log(avctx, AV_LOG_ERROR, "Invalid return from get_format(): " | |
| "%s not in possible list.\n", desc->name); | |
| ret = AV_PIX_FMT_NONE; | |
| break; | |
| } | |
| if (ffcodec(avctx->codec)->hw_configs) { | |
| for (i = 0;; i++) { | |
| hw_config = ffcodec(avctx->codec)->hw_configs[i]; | |
| if (!hw_config) | |
| break; | |
| if (hw_config->public.pix_fmt == user_choice) | |
| break; | |
| } | |
| } else { | |
| hw_config = NULL; | |
| } | |
| if (!hw_config) { | |
| // No config available, so no extra setup required. | |
| ret = user_choice; | |
| break; | |
| } | |
| config = &hw_config->public; | |
| if (config->methods & | |
| AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX && | |
| avctx->hw_frames_ctx) { | |
| const AVHWFramesContext *frames_ctx = | |
| (AVHWFramesContext*)avctx->hw_frames_ctx->data; | |
| if (frames_ctx->format != user_choice) { | |
| av_log(avctx, AV_LOG_ERROR, "Invalid setup for format %s: " | |
| "does not match the format of the provided frames " | |
| "context.\n", desc->name); | |
| goto try_again; | |
| } | |
| } else if (config->methods & | |
| AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX && | |
| avctx->hw_device_ctx) { | |
| const AVHWDeviceContext *device_ctx = | |
| (AVHWDeviceContext*)avctx->hw_device_ctx->data; | |
| if (device_ctx->type != config->device_type) { | |
| av_log(avctx, AV_LOG_ERROR, "Invalid setup for format %s: " | |
| "does not match the type of the provided device " | |
| "context.\n", desc->name); | |
| goto try_again; | |
| } | |
| } else if (config->methods & | |
| AV_CODEC_HW_CONFIG_METHOD_INTERNAL) { | |
| // Internal-only setup, no additional configuration. | |
| } else if (config->methods & | |
| AV_CODEC_HW_CONFIG_METHOD_AD_HOC) { | |
| // Some ad-hoc configuration we can't see and can't check. | |
| } else { | |
| av_log(avctx, AV_LOG_ERROR, "Invalid setup for format %s: " | |
| "missing configuration.\n", desc->name); | |
| goto try_again; | |
| } | |
| if (hw_config->hwaccel) { | |
| av_log(avctx, AV_LOG_DEBUG, "Format %s requires hwaccel %s " | |
| "initialisation.\n", desc->name, hw_config->hwaccel->p.name); | |
| err = hwaccel_init(avctx, hw_config->hwaccel); | |
| if (err < 0) | |
| goto try_again; | |
| } | |
| ret = user_choice; | |
| break; | |
| try_again: | |
| av_log(avctx, AV_LOG_DEBUG, "Format %s not usable, retrying " | |
| "get_format() without it.\n", desc->name); | |
| for (i = 0; i < n; i++) { | |
| if (choices[i] == user_choice) | |
| break; | |
| } | |
| for (; i + 1 < n; i++) | |
| choices[i] = choices[i + 1]; | |
| --n; | |
| } | |
| if (ret < 0) | |
| ff_hwaccel_uninit(avctx); | |
| av_freep(&choices); | |
| return ret; | |
| } | |
| const AVPacketSideData *ff_get_coded_side_data(const AVCodecContext *avctx, | |
| enum AVPacketSideDataType type) | |
| { | |
| for (int i = 0; i < avctx->nb_coded_side_data; i++) | |
| if (avctx->coded_side_data[i].type == type) | |
| return &avctx->coded_side_data[i]; | |
| return NULL; | |
| } | |
| static int add_metadata_from_side_data(const AVPacket *avpkt, AVFrame *frame) | |
| { | |
| size_t size; | |
| const uint8_t *side_metadata; | |
| AVDictionary **frame_md = &frame->metadata; | |
| side_metadata = av_packet_get_side_data(avpkt, | |
| AV_PKT_DATA_STRINGS_METADATA, &size); | |
| return av_packet_unpack_dictionary(side_metadata, size, frame_md); | |
| } | |
| static const struct { | |
| enum AVPacketSideDataType packet; | |
| enum AVFrameSideDataType frame; | |
| } sd_global_map[] = { | |
| { AV_PKT_DATA_REPLAYGAIN , AV_FRAME_DATA_REPLAYGAIN }, | |
| { AV_PKT_DATA_DISPLAYMATRIX, AV_FRAME_DATA_DISPLAYMATRIX }, | |
| { AV_PKT_DATA_SPHERICAL, AV_FRAME_DATA_SPHERICAL }, | |
| { AV_PKT_DATA_STEREO3D, AV_FRAME_DATA_STEREO3D }, | |
| { AV_PKT_DATA_AUDIO_SERVICE_TYPE, AV_FRAME_DATA_AUDIO_SERVICE_TYPE }, | |
| { AV_PKT_DATA_MASTERING_DISPLAY_METADATA, AV_FRAME_DATA_MASTERING_DISPLAY_METADATA }, | |
| { AV_PKT_DATA_CONTENT_LIGHT_LEVEL, AV_FRAME_DATA_CONTENT_LIGHT_LEVEL }, | |
| { AV_PKT_DATA_ICC_PROFILE, AV_FRAME_DATA_ICC_PROFILE }, | |
| { AV_PKT_DATA_AMBIENT_VIEWING_ENVIRONMENT,AV_FRAME_DATA_AMBIENT_VIEWING_ENVIRONMENT }, | |
| }; | |
| int ff_decode_frame_props_from_pkt(const AVCodecContext *avctx, | |
| AVFrame *frame, const AVPacket *pkt) | |
| { | |
| static const struct { | |
| enum AVPacketSideDataType packet; | |
| enum AVFrameSideDataType frame; | |
| } sd[] = { | |
| { AV_PKT_DATA_A53_CC, AV_FRAME_DATA_A53_CC }, | |
| { AV_PKT_DATA_AFD, AV_FRAME_DATA_AFD }, | |
| { AV_PKT_DATA_DYNAMIC_HDR10_PLUS, AV_FRAME_DATA_DYNAMIC_HDR_PLUS }, | |
| { AV_PKT_DATA_S12M_TIMECODE, AV_FRAME_DATA_S12M_TIMECODE }, | |
| { AV_PKT_DATA_SKIP_SAMPLES, AV_FRAME_DATA_SKIP_SAMPLES }, | |
| }; | |
| frame->pts = pkt->pts; | |
| frame->duration = pkt->duration; | |
| #if FF_API_FRAME_PKT | |
| FF_DISABLE_DEPRECATION_WARNINGS | |
| frame->pkt_pos = pkt->pos; | |
| frame->pkt_size = pkt->size; | |
| FF_ENABLE_DEPRECATION_WARNINGS | |
| #endif | |
| for (int i = 0; i < FF_ARRAY_ELEMS(sd_global_map); i++) { | |
| size_t size; | |
| const uint8_t *packet_sd = av_packet_get_side_data(pkt, sd_global_map[i].packet, &size); | |
| if (packet_sd) { | |
| AVFrameSideData *frame_sd; | |
| frame_sd = av_frame_new_side_data(frame, sd_global_map[i].frame, size); | |
| if (!frame_sd) | |
| return AVERROR(ENOMEM); | |
| memcpy(frame_sd->data, packet_sd, size); | |
| } | |
| } | |
| for (int i = 0; i < FF_ARRAY_ELEMS(sd); i++) { | |
| size_t size; | |
| uint8_t *packet_sd = av_packet_get_side_data(pkt, sd[i].packet, &size); | |
| if (packet_sd) { | |
| AVFrameSideData *frame_sd = av_frame_new_side_data(frame, | |
| sd[i].frame, | |
| size); | |
| if (!frame_sd) | |
| return AVERROR(ENOMEM); | |
| memcpy(frame_sd->data, packet_sd, size); | |
| } | |
| } | |
| add_metadata_from_side_data(pkt, frame); | |
| if (pkt->flags & AV_PKT_FLAG_DISCARD) { | |
| frame->flags |= AV_FRAME_FLAG_DISCARD; | |
| } else { | |
| frame->flags = (frame->flags & ~AV_FRAME_FLAG_DISCARD); | |
| } | |
| if (avctx->flags & AV_CODEC_FLAG_COPY_OPAQUE) { | |
| int ret = av_buffer_replace(&frame->opaque_ref, pkt->opaque_ref); | |
| if (ret < 0) | |
| return ret; | |
| frame->opaque = pkt->opaque; | |
| } | |
| return 0; | |
| } | |
| int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame) | |
| { | |
| int ret; | |
| for (int i = 0; i < FF_ARRAY_ELEMS(sd_global_map); i++) { | |
| const AVPacketSideData *packet_sd = ff_get_coded_side_data(avctx, | |
| sd_global_map[i].packet); | |
| if (packet_sd) { | |
| AVFrameSideData *frame_sd = av_frame_new_side_data(frame, | |
| sd_global_map[i].frame, | |
| packet_sd->size); | |
| if (!frame_sd) | |
| return AVERROR(ENOMEM); | |
| memcpy(frame_sd->data, packet_sd->data, packet_sd->size); | |
| } | |
| } | |
| if (!(ffcodec(avctx->codec)->caps_internal & FF_CODEC_CAP_SETS_FRAME_PROPS)) { | |
| const AVPacket *pkt = avctx->internal->last_pkt_props; | |
| ret = ff_decode_frame_props_from_pkt(avctx, frame, pkt); | |
| if (ret < 0) | |
| return ret; | |
| #if FF_API_FRAME_PKT | |
| FF_DISABLE_DEPRECATION_WARNINGS | |
| frame->pkt_size = pkt->stream_index; | |
| FF_ENABLE_DEPRECATION_WARNINGS | |
| #endif | |
| } | |
| ret = fill_frame_props(avctx, frame); | |
| if (ret < 0) | |
| return ret; | |
| switch (avctx->codec->type) { | |
| case AVMEDIA_TYPE_VIDEO: | |
| if (frame->width && frame->height && | |
| av_image_check_sar(frame->width, frame->height, | |
| frame->sample_aspect_ratio) < 0) { | |
| av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n", | |
| frame->sample_aspect_ratio.num, | |
| frame->sample_aspect_ratio.den); | |
| frame->sample_aspect_ratio = (AVRational){ 0, 1 }; | |
| } | |
| break; | |
| } | |
| return 0; | |
| } | |
| static void validate_avframe_allocation(AVCodecContext *avctx, AVFrame *frame) | |
| { | |
| if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) { | |
| int i; | |
| int num_planes = av_pix_fmt_count_planes(frame->format); | |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format); | |
| int flags = desc ? desc->flags : 0; | |
| if (num_planes == 1 && (flags & AV_PIX_FMT_FLAG_PAL)) | |
| num_planes = 2; | |
| for (i = 0; i < num_planes; i++) { | |
| av_assert0(frame->data[i]); | |
| } | |
| // For formats without data like hwaccel allow unused pointers to be non-NULL. | |
| for (i = num_planes; num_planes > 0 && i < FF_ARRAY_ELEMS(frame->data); i++) { | |
| if (frame->data[i]) | |
| av_log(avctx, AV_LOG_ERROR, "Buffer returned by get_buffer2() did not zero unused plane pointers\n"); | |
| frame->data[i] = NULL; | |
| } | |
| } | |
| } | |
| static void decode_data_free(void *opaque, uint8_t *data) | |
| { | |
| FrameDecodeData *fdd = (FrameDecodeData*)data; | |
| if (fdd->post_process_opaque_free) | |
| fdd->post_process_opaque_free(fdd->post_process_opaque); | |
| if (fdd->hwaccel_priv_free) | |
| fdd->hwaccel_priv_free(fdd->hwaccel_priv); | |
| av_freep(&fdd); | |
| } | |
| int ff_attach_decode_data(AVFrame *frame) | |
| { | |
| AVBufferRef *fdd_buf; | |
| FrameDecodeData *fdd; | |
| av_assert1(!frame->private_ref); | |
| av_buffer_unref(&frame->private_ref); | |
| fdd = av_mallocz(sizeof(*fdd)); | |
| if (!fdd) | |
| return AVERROR(ENOMEM); | |
| fdd_buf = av_buffer_create((uint8_t*)fdd, sizeof(*fdd), decode_data_free, | |
| NULL, AV_BUFFER_FLAG_READONLY); | |
| if (!fdd_buf) { | |
| av_freep(&fdd); | |
| return AVERROR(ENOMEM); | |
| } | |
| frame->private_ref = fdd_buf; | |
| return 0; | |
| } | |
| int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags) | |
| { | |
| const FFHWAccel *hwaccel = ffhwaccel(avctx->hwaccel); | |
| int override_dimensions = 1; | |
| int ret; | |
| av_assert0(av_codec_is_decoder(avctx->codec)); | |
| if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) { | |
| if ((unsigned)avctx->width > INT_MAX - STRIDE_ALIGN || | |
| (ret = av_image_check_size2(FFALIGN(avctx->width, STRIDE_ALIGN), avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx)) < 0 || avctx->pix_fmt<0) { | |
| av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n"); | |
| ret = AVERROR(EINVAL); | |
| goto fail; | |
| } | |
| if (frame->width <= 0 || frame->height <= 0) { | |
| frame->width = FFMAX(avctx->width, AV_CEIL_RSHIFT(avctx->coded_width, avctx->lowres)); | |
| frame->height = FFMAX(avctx->height, AV_CEIL_RSHIFT(avctx->coded_height, avctx->lowres)); | |
| override_dimensions = 0; | |
| } | |
| if (frame->data[0] || frame->data[1] || frame->data[2] || frame->data[3]) { | |
| av_log(avctx, AV_LOG_ERROR, "pic->data[*]!=NULL in get_buffer_internal\n"); | |
| ret = AVERROR(EINVAL); | |
| goto fail; | |
| } | |
| } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) { | |
| if (frame->nb_samples * (int64_t)avctx->ch_layout.nb_channels > avctx->max_samples) { | |
| av_log(avctx, AV_LOG_ERROR, "samples per frame %d, exceeds max_samples %"PRId64"\n", frame->nb_samples, avctx->max_samples); | |
| ret = AVERROR(EINVAL); | |
| goto fail; | |
| } | |
| } | |
| ret = ff_decode_frame_props(avctx, frame); | |
| if (ret < 0) | |
| goto fail; | |
| if (hwaccel) { | |
| if (hwaccel->alloc_frame) { | |
| ret = hwaccel->alloc_frame(avctx, frame); | |
| goto end; | |
| } | |
| } else | |
| avctx->sw_pix_fmt = avctx->pix_fmt; | |
| ret = avctx->get_buffer2(avctx, frame, flags); | |
| if (ret < 0) | |
| goto fail; | |
| validate_avframe_allocation(avctx, frame); | |
| ret = ff_attach_decode_data(frame); | |
| if (ret < 0) | |
| goto fail; | |
| end: | |
| if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions && | |
| !(ffcodec(avctx->codec)->caps_internal & FF_CODEC_CAP_EXPORTS_CROPPING)) { | |
| frame->width = avctx->width; | |
| frame->height = avctx->height; | |
| } | |
| fail: | |
| if (ret < 0) { | |
| av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); | |
| av_frame_unref(frame); | |
| } | |
| return ret; | |
| } | |
| static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags) | |
| { | |
| AVFrame *tmp; | |
| int ret; | |
| av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO); | |
| if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) { | |
| av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n", | |
| frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt)); | |
| av_frame_unref(frame); | |
| } | |
| if (!frame->data[0]) | |
| return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF); | |
| if ((flags & FF_REGET_BUFFER_FLAG_READONLY) || av_frame_is_writable(frame)) | |
| return ff_decode_frame_props(avctx, frame); | |
| tmp = av_frame_alloc(); | |
| if (!tmp) | |
| return AVERROR(ENOMEM); | |
| av_frame_move_ref(tmp, frame); | |
| ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF); | |
| if (ret < 0) { | |
| av_frame_free(&tmp); | |
| return ret; | |
| } | |
| av_frame_copy(frame, tmp); | |
| av_frame_free(&tmp); | |
| return 0; | |
| } | |
| int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame, int flags) | |
| { | |
| int ret = reget_buffer_internal(avctx, frame, flags); | |
| if (ret < 0) | |
| av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n"); | |
| return ret; | |
| } | |
| int ff_decode_preinit(AVCodecContext *avctx) | |
| { | |
| AVCodecInternal *avci = avctx->internal; | |
| DecodeContext *dc = decode_ctx(avci); | |
| int ret = 0; | |
| /* if the decoder init function was already called previously, | |
| * free the already allocated subtitle_header before overwriting it */ | |
| av_freep(&avctx->subtitle_header); | |
| if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) { | |
| av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n", | |
| avctx->codec->max_lowres); | |
| avctx->lowres = avctx->codec->max_lowres; | |
| } | |
| if (avctx->sub_charenc) { | |
| if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) { | |
| av_log(avctx, AV_LOG_ERROR, "Character encoding is only " | |
| "supported with subtitles codecs\n"); | |
| return AVERROR(EINVAL); | |
| } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) { | |
| av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, " | |
| "subtitles character encoding will be ignored\n", | |
| avctx->codec_descriptor->name); | |
| avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING; | |
| } else { | |
| /* input character encoding is set for a text based subtitle | |
| * codec at this point */ | |
| if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC) | |
| avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER; | |
| if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) { | |
| #if CONFIG_ICONV | |
| iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc); | |
| if (cd == (iconv_t)-1) { | |
| ret = AVERROR(errno); | |
| av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context " | |
| "with input character encoding \"%s\"\n", avctx->sub_charenc); | |
| return ret; | |
| } | |
| iconv_close(cd); | |
| #else | |
| av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles " | |
| "conversion needs a libavcodec built with iconv support " | |
| "for this codec\n"); | |
| return AVERROR(ENOSYS); | |
| #endif | |
| } | |
| } | |
| } | |
| dc->pts_correction_num_faulty_pts = | |
| dc->pts_correction_num_faulty_dts = 0; | |
| dc->pts_correction_last_pts = | |
| dc->pts_correction_last_dts = INT64_MIN; | |
| if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY | |
| && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO) | |
| av_log(avctx, AV_LOG_WARNING, | |
| "gray decoding requested but not enabled at configuration time\n"); | |
| if (avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) { | |
| avctx->export_side_data |= AV_CODEC_EXPORT_DATA_MVS; | |
| } | |
| if (avctx->nb_side_data_prefer_packet == 1 && | |
| avctx->side_data_prefer_packet[0] == -1) | |
| dc->side_data_pref_mask = ~0ULL; | |
| else { | |
| for (unsigned i = 0; i < avctx->nb_side_data_prefer_packet; i++) { | |
| int val = avctx->side_data_prefer_packet[i]; | |
| if (val < 0 || val >= AV_PKT_DATA_NB) { | |
| av_log(avctx, AV_LOG_ERROR, "Invalid side data type: %d\n", val); | |
| return AVERROR(EINVAL); | |
| } | |
| for (unsigned j = 0; j < FF_ARRAY_ELEMS(sd_global_map); j++) { | |
| if (sd_global_map[j].packet == val) { | |
| val = sd_global_map[j].frame; | |
| // this code will need to be changed when we have more than | |
| // 64 frame side data types | |
| if (val >= 64) { | |
| av_log(avctx, AV_LOG_ERROR, "Side data type too big\n"); | |
| return AVERROR_BUG; | |
| } | |
| dc->side_data_pref_mask |= 1ULL << val; | |
| } | |
| } | |
| } | |
| } | |
| avci->in_pkt = av_packet_alloc(); | |
| avci->last_pkt_props = av_packet_alloc(); | |
| if (!avci->in_pkt || !avci->last_pkt_props) | |
| return AVERROR(ENOMEM); | |
| ret = decode_bsfs_init(avctx); | |
| if (ret < 0) | |
| return ret; | |
| #if FF_API_DROPCHANGED | |
| if (avctx->flags & AV_CODEC_FLAG_DROPCHANGED) | |
| av_log(avctx, AV_LOG_WARNING, "The dropchanged flag is deprecated.\n"); | |
| #endif | |
| return 0; | |
| } | |
| /** | |
| * Check side data preference and clear existing side data from frame | |
| * if needed. | |
| * | |
| * @retval 0 side data of this type can be added to frame | |
| * @retval 1 side data of this type should not be added to frame | |
| */ | |
| static int side_data_pref(const AVCodecContext *avctx, AVFrame *frame, | |
| enum AVFrameSideDataType type) | |
| { | |
| DecodeContext *dc = decode_ctx(avctx->internal); | |
| // Note: could be skipped for `type` without corresponding packet sd | |
| if (av_frame_get_side_data(frame, type)) { | |
| if (dc->side_data_pref_mask & (1ULL << type)) | |
| return 1; | |
| av_frame_remove_side_data(frame, type); | |
| } | |
| return 0; | |
| } | |
| int ff_frame_new_side_data(const AVCodecContext *avctx, AVFrame *frame, | |
| enum AVFrameSideDataType type, size_t size, | |
| AVFrameSideData **psd) | |
| { | |
| AVFrameSideData *sd; | |
| if (side_data_pref(avctx, frame, type)) { | |
| if (psd) | |
| *psd = NULL; | |
| return 0; | |
| } | |
| sd = av_frame_new_side_data(frame, type, size); | |
| if (psd) | |
| *psd = sd; | |
| return sd ? 0 : AVERROR(ENOMEM); | |
| } | |
| int ff_frame_new_side_data_from_buf(const AVCodecContext *avctx, | |
| AVFrame *frame, enum AVFrameSideDataType type, | |
| AVBufferRef **buf, AVFrameSideData **psd) | |
| { | |
| AVFrameSideData *sd = NULL; | |
| int ret = 0; | |
| if (side_data_pref(avctx, frame, type)) | |
| goto finish; | |
| sd = av_frame_new_side_data_from_buf(frame, type, *buf); | |
| if (sd) | |
| *buf = NULL; | |
| else | |
| ret = AVERROR(ENOMEM); | |
| finish: | |
| av_buffer_unref(buf); | |
| if (psd) | |
| *psd = sd; | |
| return ret; | |
| } | |
| int ff_decode_mastering_display_new(const AVCodecContext *avctx, AVFrame *frame, | |
| AVMasteringDisplayMetadata **mdm) | |
| { | |
| if (side_data_pref(avctx, frame, AV_FRAME_DATA_MASTERING_DISPLAY_METADATA)) { | |
| *mdm = NULL; | |
| return 0; | |
| } | |
| *mdm = av_mastering_display_metadata_create_side_data(frame); | |
| return *mdm ? 0 : AVERROR(ENOMEM); | |
| } | |
| int ff_decode_content_light_new(const AVCodecContext *avctx, AVFrame *frame, | |
| AVContentLightMetadata **clm) | |
| { | |
| if (side_data_pref(avctx, frame, AV_FRAME_DATA_CONTENT_LIGHT_LEVEL)) { | |
| *clm = NULL; | |
| return 0; | |
| } | |
| *clm = av_content_light_metadata_create_side_data(frame); | |
| return *clm ? 0 : AVERROR(ENOMEM); | |
| } | |
| int ff_copy_palette(void *dst, const AVPacket *src, void *logctx) | |
| { | |
| size_t size; | |
| const void *pal = av_packet_get_side_data(src, AV_PKT_DATA_PALETTE, &size); | |
| if (pal && size == AVPALETTE_SIZE) { | |
| memcpy(dst, pal, AVPALETTE_SIZE); | |
| return 1; | |
| } else if (pal) { | |
| av_log(logctx, AV_LOG_ERROR, | |
| "Palette size %"SIZE_SPECIFIER" is wrong\n", size); | |
| } | |
| return 0; | |
| } | |
| int ff_hwaccel_frame_priv_alloc(AVCodecContext *avctx, void **hwaccel_picture_private) | |
| { | |
| const FFHWAccel *hwaccel = ffhwaccel(avctx->hwaccel); | |
| if (!hwaccel || !hwaccel->frame_priv_data_size) | |
| return 0; | |
| av_assert0(!*hwaccel_picture_private); | |
| if (hwaccel->free_frame_priv) { | |
| AVHWFramesContext *frames_ctx; | |
| if (!avctx->hw_frames_ctx) | |
| return AVERROR(EINVAL); | |
| frames_ctx = (AVHWFramesContext *) avctx->hw_frames_ctx->data; | |
| *hwaccel_picture_private = ff_refstruct_alloc_ext(hwaccel->frame_priv_data_size, 0, | |
| frames_ctx->device_ctx, | |
| hwaccel->free_frame_priv); | |
| } else { | |
| *hwaccel_picture_private = ff_refstruct_allocz(hwaccel->frame_priv_data_size); | |
| } | |
| if (!*hwaccel_picture_private) | |
| return AVERROR(ENOMEM); | |
| return 0; | |
| } | |
| void ff_decode_flush_buffers(AVCodecContext *avctx) | |
| { | |
| AVCodecInternal *avci = avctx->internal; | |
| DecodeContext *dc = decode_ctx(avci); | |
| av_packet_unref(avci->last_pkt_props); | |
| av_packet_unref(avci->in_pkt); | |
| dc->pts_correction_last_pts = | |
| dc->pts_correction_last_dts = INT64_MIN; | |
| av_bsf_flush(avci->bsf); | |
| dc->nb_draining_errors = 0; | |
| dc->draining_started = 0; | |
| } | |
| AVCodecInternal *ff_decode_internal_alloc(void) | |
| { | |
| return av_mallocz(sizeof(DecodeContext)); | |
| } |