| /* | |
| * generic encoding-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 "libavutil/attributes.h" | |
| #include "libavutil/avassert.h" | |
| #include "libavutil/channel_layout.h" | |
| #include "libavutil/emms.h" | |
| #include "libavutil/frame.h" | |
| #include "libavutil/imgutils.h" | |
| #include "libavutil/internal.h" | |
| #include "libavutil/pixdesc.h" | |
| #include "libavutil/samplefmt.h" | |
| #include "avcodec.h" | |
| #include "avcodec_internal.h" | |
| #include "codec_desc.h" | |
| #include "codec_internal.h" | |
| #include "encode.h" | |
| #include "frame_thread_encoder.h" | |
| #include "internal.h" | |
| typedef struct EncodeContext { | |
| AVCodecInternal avci; | |
| /** | |
| * This is set to AV_PKT_FLAG_KEY for encoders that encode intra-only | |
| * formats (i.e. whose codec descriptor has AV_CODEC_PROP_INTRA_ONLY set). | |
| * This is used to set said flag generically for said encoders. | |
| */ | |
| int intra_only_flag; | |
| /** | |
| * An audio frame with less than required samples has been submitted (and | |
| * potentially padded with silence). Reject all subsequent frames. | |
| */ | |
| int last_audio_frame; | |
| } EncodeContext; | |
| static EncodeContext *encode_ctx(AVCodecInternal *avci) | |
| { | |
| return (EncodeContext*)avci; | |
| } | |
| int ff_alloc_packet(AVCodecContext *avctx, AVPacket *avpkt, int64_t size) | |
| { | |
| if (size < 0 || size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE) { | |
| av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n", | |
| size, INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE); | |
| return AVERROR(EINVAL); | |
| } | |
| av_assert0(!avpkt->data); | |
| av_fast_padded_malloc(&avctx->internal->byte_buffer, | |
| &avctx->internal->byte_buffer_size, size); | |
| avpkt->data = avctx->internal->byte_buffer; | |
| if (!avpkt->data) { | |
| av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size); | |
| return AVERROR(ENOMEM); | |
| } | |
| avpkt->size = size; | |
| return 0; | |
| } | |
| int avcodec_default_get_encode_buffer(AVCodecContext *avctx, AVPacket *avpkt, int flags) | |
| { | |
| int ret; | |
| if (avpkt->size < 0 || avpkt->size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE) | |
| return AVERROR(EINVAL); | |
| if (avpkt->data || avpkt->buf) { | |
| av_log(avctx, AV_LOG_ERROR, "avpkt->{data,buf} != NULL in avcodec_default_get_encode_buffer()\n"); | |
| return AVERROR(EINVAL); | |
| } | |
| ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE); | |
| if (ret < 0) { | |
| av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %d\n", avpkt->size); | |
| return ret; | |
| } | |
| avpkt->data = avpkt->buf->data; | |
| return 0; | |
| } | |
| int ff_get_encode_buffer(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int flags) | |
| { | |
| int ret; | |
| if (size < 0 || size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE) | |
| return AVERROR(EINVAL); | |
| av_assert0(!avpkt->data && !avpkt->buf); | |
| avpkt->size = size; | |
| ret = avctx->get_encode_buffer(avctx, avpkt, flags); | |
| if (ret < 0) | |
| goto fail; | |
| if (!avpkt->data || !avpkt->buf) { | |
| av_log(avctx, AV_LOG_ERROR, "No buffer returned by get_encode_buffer()\n"); | |
| ret = AVERROR(EINVAL); | |
| goto fail; | |
| } | |
| memset(avpkt->data + avpkt->size, 0, AV_INPUT_BUFFER_PADDING_SIZE); | |
| ret = 0; | |
| fail: | |
| if (ret < 0) { | |
| av_log(avctx, AV_LOG_ERROR, "get_encode_buffer() failed\n"); | |
| av_packet_unref(avpkt); | |
| } | |
| return ret; | |
| } | |
| static int encode_make_refcounted(AVCodecContext *avctx, AVPacket *avpkt) | |
| { | |
| uint8_t *data = avpkt->data; | |
| int ret; | |
| if (avpkt->buf) | |
| return 0; | |
| avpkt->data = NULL; | |
| ret = ff_get_encode_buffer(avctx, avpkt, avpkt->size, 0); | |
| if (ret < 0) | |
| return ret; | |
| memcpy(avpkt->data, data, avpkt->size); | |
| return 0; | |
| } | |
| /** | |
| * Pad last frame with silence. | |
| */ | |
| static int pad_last_frame(AVCodecContext *s, AVFrame *frame, const AVFrame *src, int out_samples) | |
| { | |
| int ret; | |
| frame->format = src->format; | |
| frame->nb_samples = out_samples; | |
| ret = av_channel_layout_copy(&frame->ch_layout, &s->ch_layout); | |
| if (ret < 0) | |
| goto fail; | |
| ret = av_frame_get_buffer(frame, 0); | |
| if (ret < 0) | |
| goto fail; | |
| ret = av_frame_copy_props(frame, src); | |
| if (ret < 0) | |
| goto fail; | |
| if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0, | |
| src->nb_samples, s->ch_layout.nb_channels, | |
| s->sample_fmt)) < 0) | |
| goto fail; | |
| if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples, | |
| frame->nb_samples - src->nb_samples, | |
| s->ch_layout.nb_channels, s->sample_fmt)) < 0) | |
| goto fail; | |
| return 0; | |
| fail: | |
| av_frame_unref(frame); | |
| encode_ctx(s->internal)->last_audio_frame = 0; | |
| return ret; | |
| } | |
| int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size, | |
| const AVSubtitle *sub) | |
| { | |
| int ret; | |
| if (sub->start_display_time) { | |
| av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n"); | |
| return -1; | |
| } | |
| ret = ffcodec(avctx->codec)->cb.encode_sub(avctx, buf, buf_size, sub); | |
| avctx->frame_num++; | |
| return ret; | |
| } | |
| int ff_encode_get_frame(AVCodecContext *avctx, AVFrame *frame) | |
| { | |
| AVCodecInternal *avci = avctx->internal; | |
| if (avci->draining) | |
| return AVERROR_EOF; | |
| if (!avci->buffer_frame->buf[0]) | |
| return AVERROR(EAGAIN); | |
| av_frame_move_ref(frame, avci->buffer_frame); | |
| #if FF_API_FRAME_KEY | |
| FF_DISABLE_DEPRECATION_WARNINGS | |
| if (frame->key_frame) | |
| frame->flags |= AV_FRAME_FLAG_KEY; | |
| FF_ENABLE_DEPRECATION_WARNINGS | |
| #endif | |
| #if FF_API_INTERLACED_FRAME | |
| FF_DISABLE_DEPRECATION_WARNINGS | |
| if (frame->interlaced_frame) | |
| frame->flags |= AV_FRAME_FLAG_INTERLACED; | |
| if (frame->top_field_first) | |
| frame->flags |= AV_FRAME_FLAG_TOP_FIELD_FIRST; | |
| FF_ENABLE_DEPRECATION_WARNINGS | |
| #endif | |
| return 0; | |
| } | |
| int ff_encode_reordered_opaque(AVCodecContext *avctx, | |
| AVPacket *pkt, const AVFrame *frame) | |
| { | |
| if (avctx->flags & AV_CODEC_FLAG_COPY_OPAQUE) { | |
| int ret = av_buffer_replace(&pkt->opaque_ref, frame->opaque_ref); | |
| if (ret < 0) | |
| return ret; | |
| pkt->opaque = frame->opaque; | |
| } | |
| return 0; | |
| } | |
| int ff_encode_encode_cb(AVCodecContext *avctx, AVPacket *avpkt, | |
| AVFrame *frame, int *got_packet) | |
| { | |
| const FFCodec *const codec = ffcodec(avctx->codec); | |
| int ret; | |
| ret = codec->cb.encode(avctx, avpkt, frame, got_packet); | |
| emms_c(); | |
| av_assert0(ret <= 0); | |
| if (!ret && *got_packet) { | |
| if (avpkt->data) { | |
| ret = encode_make_refcounted(avctx, avpkt); | |
| if (ret < 0) | |
| goto unref; | |
| // Date returned by encoders must always be ref-counted | |
| av_assert0(avpkt->buf); | |
| } | |
| // set the timestamps for the simple no-delay case | |
| // encoders with delay have to set the timestamps themselves | |
| if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || | |
| (frame && (codec->caps_internal & FF_CODEC_CAP_EOF_FLUSH))) { | |
| if (avpkt->pts == AV_NOPTS_VALUE) | |
| avpkt->pts = frame->pts; | |
| if (!avpkt->duration) { | |
| if (frame->duration) | |
| avpkt->duration = frame->duration; | |
| else if (avctx->codec->type == AVMEDIA_TYPE_AUDIO) { | |
| avpkt->duration = ff_samples_to_time_base(avctx, | |
| frame->nb_samples); | |
| } | |
| } | |
| ret = ff_encode_reordered_opaque(avctx, avpkt, frame); | |
| if (ret < 0) | |
| goto unref; | |
| } | |
| // dts equals pts unless there is reordering | |
| // there can be no reordering if there is no encoder delay | |
| if (!(avctx->codec_descriptor->props & AV_CODEC_PROP_REORDER) || | |
| !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || | |
| (codec->caps_internal & FF_CODEC_CAP_EOF_FLUSH)) | |
| avpkt->dts = avpkt->pts; | |
| } else { | |
| unref: | |
| av_packet_unref(avpkt); | |
| } | |
| if (frame) | |
| av_frame_unref(frame); | |
| return ret; | |
| } | |
| static int encode_simple_internal(AVCodecContext *avctx, AVPacket *avpkt) | |
| { | |
| AVCodecInternal *avci = avctx->internal; | |
| AVFrame *frame = avci->in_frame; | |
| const FFCodec *const codec = ffcodec(avctx->codec); | |
| int got_packet; | |
| int ret; | |
| if (avci->draining_done) | |
| return AVERROR_EOF; | |
| if (!frame->buf[0] && !avci->draining) { | |
| av_frame_unref(frame); | |
| ret = ff_encode_get_frame(avctx, frame); | |
| if (ret < 0 && ret != AVERROR_EOF) | |
| return ret; | |
| } | |
| if (!frame->buf[0]) { | |
| if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY || | |
| avci->frame_thread_encoder)) | |
| return AVERROR_EOF; | |
| // Flushing is signaled with a NULL frame | |
| frame = NULL; | |
| } | |
| got_packet = 0; | |
| av_assert0(codec->cb_type == FF_CODEC_CB_TYPE_ENCODE); | |
| if (CONFIG_FRAME_THREAD_ENCODER && avci->frame_thread_encoder) | |
| /* This will unref frame. */ | |
| ret = ff_thread_video_encode_frame(avctx, avpkt, frame, &got_packet); | |
| else { | |
| ret = ff_encode_encode_cb(avctx, avpkt, frame, &got_packet); | |
| } | |
| if (avci->draining && !got_packet) | |
| avci->draining_done = 1; | |
| return ret; | |
| } | |
| static int encode_simple_receive_packet(AVCodecContext *avctx, AVPacket *avpkt) | |
| { | |
| int ret; | |
| while (!avpkt->data && !avpkt->side_data) { | |
| ret = encode_simple_internal(avctx, avpkt); | |
| if (ret < 0) | |
| return ret; | |
| } | |
| return 0; | |
| } | |
| static int encode_receive_packet_internal(AVCodecContext *avctx, AVPacket *avpkt) | |
| { | |
| AVCodecInternal *avci = avctx->internal; | |
| int ret; | |
| if (avci->draining_done) | |
| return AVERROR_EOF; | |
| av_assert0(!avpkt->data && !avpkt->side_data); | |
| if (avctx->codec->type == AVMEDIA_TYPE_VIDEO) { | |
| if ((avctx->flags & AV_CODEC_FLAG_PASS1) && avctx->stats_out) | |
| avctx->stats_out[0] = '\0'; | |
| if (av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx)) | |
| return AVERROR(EINVAL); | |
| } | |
| if (ffcodec(avctx->codec)->cb_type == FF_CODEC_CB_TYPE_RECEIVE_PACKET) { | |
| ret = ffcodec(avctx->codec)->cb.receive_packet(avctx, avpkt); | |
| if (ret < 0) | |
| av_packet_unref(avpkt); | |
| else | |
| // Encoders must always return ref-counted buffers. | |
| // Side-data only packets have no data and can be not ref-counted. | |
| av_assert0(!avpkt->data || avpkt->buf); | |
| } else | |
| ret = encode_simple_receive_packet(avctx, avpkt); | |
| if (ret >= 0) | |
| avpkt->flags |= encode_ctx(avci)->intra_only_flag; | |
| if (ret == AVERROR_EOF) | |
| avci->draining_done = 1; | |
| return ret; | |
| } | |
| #if CONFIG_LCMS2 | |
| static int encode_generate_icc_profile(AVCodecContext *avctx, AVFrame *frame) | |
| { | |
| enum AVColorTransferCharacteristic trc = frame->color_trc; | |
| enum AVColorPrimaries prim = frame->color_primaries; | |
| const FFCodec *const codec = ffcodec(avctx->codec); | |
| AVCodecInternal *avci = avctx->internal; | |
| cmsHPROFILE profile; | |
| int ret; | |
| /* don't generate ICC profiles if disabled or unsupported */ | |
| if (!(avctx->flags2 & AV_CODEC_FLAG2_ICC_PROFILES)) | |
| return 0; | |
| if (!(codec->caps_internal & FF_CODEC_CAP_ICC_PROFILES)) | |
| return 0; | |
| if (trc == AVCOL_TRC_UNSPECIFIED) | |
| trc = avctx->color_trc; | |
| if (prim == AVCOL_PRI_UNSPECIFIED) | |
| prim = avctx->color_primaries; | |
| if (trc == AVCOL_TRC_UNSPECIFIED || prim == AVCOL_PRI_UNSPECIFIED) | |
| return 0; /* can't generate ICC profile with missing csp tags */ | |
| if (av_frame_get_side_data(frame, AV_FRAME_DATA_ICC_PROFILE)) | |
| return 0; /* don't overwrite existing ICC profile */ | |
| if (!avci->icc.avctx) { | |
| ret = ff_icc_context_init(&avci->icc, avctx); | |
| if (ret < 0) | |
| return ret; | |
| } | |
| ret = ff_icc_profile_generate(&avci->icc, prim, trc, &profile); | |
| if (ret < 0) | |
| return ret; | |
| ret = ff_icc_profile_attach(&avci->icc, profile, frame); | |
| cmsCloseProfile(profile); | |
| return ret; | |
| } | |
| #else /* !CONFIG_LCMS2 */ | |
| static int encode_generate_icc_profile(av_unused AVCodecContext *c, av_unused AVFrame *f) | |
| { | |
| return 0; | |
| } | |
| #endif | |
| static int encode_send_frame_internal(AVCodecContext *avctx, const AVFrame *src) | |
| { | |
| AVCodecInternal *avci = avctx->internal; | |
| EncodeContext *ec = encode_ctx(avci); | |
| AVFrame *dst = avci->buffer_frame; | |
| int ret; | |
| if (avctx->codec->type == AVMEDIA_TYPE_AUDIO) { | |
| /* extract audio service type metadata */ | |
| AVFrameSideData *sd = av_frame_get_side_data(src, AV_FRAME_DATA_AUDIO_SERVICE_TYPE); | |
| if (sd && sd->size >= sizeof(enum AVAudioServiceType)) | |
| avctx->audio_service_type = *(enum AVAudioServiceType*)sd->data; | |
| /* check for valid frame size */ | |
| if (!(avctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)) { | |
| /* if we already got an undersized frame, that must have been the last */ | |
| if (ec->last_audio_frame) { | |
| av_log(avctx, AV_LOG_ERROR, "frame_size (%d) was not respected for a non-last frame\n", avctx->frame_size); | |
| return AVERROR(EINVAL); | |
| } | |
| if (src->nb_samples > avctx->frame_size) { | |
| av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) > frame_size (%d)\n", src->nb_samples, avctx->frame_size); | |
| return AVERROR(EINVAL); | |
| } | |
| if (src->nb_samples < avctx->frame_size) { | |
| ec->last_audio_frame = 1; | |
| if (!(avctx->codec->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME)) { | |
| int pad_samples = avci->pad_samples ? avci->pad_samples : avctx->frame_size; | |
| int out_samples = (src->nb_samples + pad_samples - 1) / pad_samples * pad_samples; | |
| if (out_samples != src->nb_samples) { | |
| ret = pad_last_frame(avctx, dst, src, out_samples); | |
| if (ret < 0) | |
| return ret; | |
| goto finish; | |
| } | |
| } | |
| } | |
| } | |
| } | |
| ret = av_frame_ref(dst, src); | |
| if (ret < 0) | |
| return ret; | |
| finish: | |
| if (avctx->codec->type == AVMEDIA_TYPE_VIDEO) { | |
| ret = encode_generate_icc_profile(avctx, dst); | |
| if (ret < 0) | |
| return ret; | |
| } | |
| // unset frame duration unless AV_CODEC_FLAG_FRAME_DURATION is set, | |
| // since otherwise we cannot be sure that whatever value it has is in the | |
| // right timebase, so we would produce an incorrect value, which is worse | |
| // than none at all | |
| if (!(avctx->flags & AV_CODEC_FLAG_FRAME_DURATION)) | |
| dst->duration = 0; | |
| return 0; | |
| } | |
| int attribute_align_arg avcodec_send_frame(AVCodecContext *avctx, const AVFrame *frame) | |
| { | |
| AVCodecInternal *avci = avctx->internal; | |
| int ret; | |
| if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec)) | |
| return AVERROR(EINVAL); | |
| if (avci->draining) | |
| return AVERROR_EOF; | |
| if (avci->buffer_frame->buf[0]) | |
| return AVERROR(EAGAIN); | |
| if (!frame) { | |
| avci->draining = 1; | |
| } else { | |
| ret = encode_send_frame_internal(avctx, frame); | |
| if (ret < 0) | |
| return ret; | |
| } | |
| if (!avci->buffer_pkt->data && !avci->buffer_pkt->side_data) { | |
| ret = encode_receive_packet_internal(avctx, avci->buffer_pkt); | |
| if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) | |
| return ret; | |
| } | |
| avctx->frame_num++; | |
| return 0; | |
| } | |
| int attribute_align_arg avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt) | |
| { | |
| AVCodecInternal *avci = avctx->internal; | |
| int ret; | |
| av_packet_unref(avpkt); | |
| if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec)) | |
| return AVERROR(EINVAL); | |
| if (avci->buffer_pkt->data || avci->buffer_pkt->side_data) { | |
| av_packet_move_ref(avpkt, avci->buffer_pkt); | |
| } else { | |
| ret = encode_receive_packet_internal(avctx, avpkt); | |
| if (ret < 0) | |
| return ret; | |
| } | |
| return 0; | |
| } | |
| static int encode_preinit_video(AVCodecContext *avctx) | |
| { | |
| const AVCodec *c = avctx->codec; | |
| const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt); | |
| int i; | |
| if (!av_get_pix_fmt_name(avctx->pix_fmt)) { | |
| av_log(avctx, AV_LOG_ERROR, "Invalid video pixel format: %d\n", | |
| avctx->pix_fmt); | |
| return AVERROR(EINVAL); | |
| } | |
| if (c->pix_fmts) { | |
| for (i = 0; c->pix_fmts[i] != AV_PIX_FMT_NONE; i++) | |
| if (avctx->pix_fmt == c->pix_fmts[i]) | |
| break; | |
| if (c->pix_fmts[i] == AV_PIX_FMT_NONE) { | |
| av_log(avctx, AV_LOG_ERROR, | |
| "Specified pixel format %s is not supported by the %s encoder.\n", | |
| av_get_pix_fmt_name(avctx->pix_fmt), c->name); | |
| av_log(avctx, AV_LOG_ERROR, "Supported pixel formats:\n"); | |
| for (int p = 0; c->pix_fmts[p] != AV_PIX_FMT_NONE; p++) { | |
| av_log(avctx, AV_LOG_ERROR, " %s\n", | |
| av_get_pix_fmt_name(c->pix_fmts[p])); | |
| } | |
| return AVERROR(EINVAL); | |
| } | |
| if (c->pix_fmts[i] == AV_PIX_FMT_YUVJ420P || | |
| c->pix_fmts[i] == AV_PIX_FMT_YUVJ411P || | |
| c->pix_fmts[i] == AV_PIX_FMT_YUVJ422P || | |
| c->pix_fmts[i] == AV_PIX_FMT_YUVJ440P || | |
| c->pix_fmts[i] == AV_PIX_FMT_YUVJ444P) | |
| avctx->color_range = AVCOL_RANGE_JPEG; | |
| } | |
| if ( avctx->bits_per_raw_sample < 0 | |
| || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) { | |
| av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n", | |
| avctx->bits_per_raw_sample, pixdesc->comp[0].depth); | |
| avctx->bits_per_raw_sample = pixdesc->comp[0].depth; | |
| } | |
| if (avctx->width <= 0 || avctx->height <= 0) { | |
| av_log(avctx, AV_LOG_ERROR, "dimensions not set\n"); | |
| return AVERROR(EINVAL); | |
| } | |
| #if FF_API_TICKS_PER_FRAME | |
| FF_DISABLE_DEPRECATION_WARNINGS | |
| if (avctx->ticks_per_frame && avctx->time_base.num && | |
| avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) { | |
| av_log(avctx, AV_LOG_ERROR, | |
| "ticks_per_frame %d too large for the timebase %d/%d.", | |
| avctx->ticks_per_frame, | |
| avctx->time_base.num, | |
| avctx->time_base.den); | |
| return AVERROR(EINVAL); | |
| } | |
| FF_ENABLE_DEPRECATION_WARNINGS | |
| #endif | |
| if (avctx->hw_frames_ctx) { | |
| AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data; | |
| if (frames_ctx->format != avctx->pix_fmt) { | |
| av_log(avctx, AV_LOG_ERROR, | |
| "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n"); | |
| return AVERROR(EINVAL); | |
| } | |
| if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE && | |
| avctx->sw_pix_fmt != frames_ctx->sw_format) { | |
| av_log(avctx, AV_LOG_ERROR, | |
| "Mismatching AVCodecContext.sw_pix_fmt (%s) " | |
| "and AVHWFramesContext.sw_format (%s)\n", | |
| av_get_pix_fmt_name(avctx->sw_pix_fmt), | |
| av_get_pix_fmt_name(frames_ctx->sw_format)); | |
| return AVERROR(EINVAL); | |
| } | |
| avctx->sw_pix_fmt = frames_ctx->sw_format; | |
| } | |
| return 0; | |
| } | |
| static int encode_preinit_audio(AVCodecContext *avctx) | |
| { | |
| const AVCodec *c = avctx->codec; | |
| int i; | |
| if (!av_get_sample_fmt_name(avctx->sample_fmt)) { | |
| av_log(avctx, AV_LOG_ERROR, "Invalid audio sample format: %d\n", | |
| avctx->sample_fmt); | |
| return AVERROR(EINVAL); | |
| } | |
| if (avctx->sample_rate <= 0) { | |
| av_log(avctx, AV_LOG_ERROR, "Invalid audio sample rate: %d\n", | |
| avctx->sample_rate); | |
| return AVERROR(EINVAL); | |
| } | |
| if (c->sample_fmts) { | |
| for (i = 0; c->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) { | |
| if (avctx->sample_fmt == c->sample_fmts[i]) | |
| break; | |
| if (avctx->ch_layout.nb_channels == 1 && | |
| av_get_planar_sample_fmt(avctx->sample_fmt) == | |
| av_get_planar_sample_fmt(c->sample_fmts[i])) { | |
| avctx->sample_fmt = c->sample_fmts[i]; | |
| break; | |
| } | |
| } | |
| if (c->sample_fmts[i] == AV_SAMPLE_FMT_NONE) { | |
| av_log(avctx, AV_LOG_ERROR, | |
| "Specified sample format %s is not supported by the %s encoder\n", | |
| av_get_sample_fmt_name(avctx->sample_fmt), c->name); | |
| av_log(avctx, AV_LOG_ERROR, "Supported sample formats:\n"); | |
| for (int p = 0; c->sample_fmts[p] != AV_SAMPLE_FMT_NONE; p++) { | |
| av_log(avctx, AV_LOG_ERROR, " %s\n", | |
| av_get_sample_fmt_name(c->sample_fmts[p])); | |
| } | |
| return AVERROR(EINVAL); | |
| } | |
| } | |
| if (c->supported_samplerates) { | |
| for (i = 0; c->supported_samplerates[i] != 0; i++) | |
| if (avctx->sample_rate == c->supported_samplerates[i]) | |
| break; | |
| if (c->supported_samplerates[i] == 0) { | |
| av_log(avctx, AV_LOG_ERROR, | |
| "Specified sample rate %d is not supported by the %s encoder\n", | |
| avctx->sample_rate, c->name); | |
| av_log(avctx, AV_LOG_ERROR, "Supported sample rates:\n"); | |
| for (int p = 0; c->supported_samplerates[p]; p++) | |
| av_log(avctx, AV_LOG_ERROR, " %d\n", c->supported_samplerates[p]); | |
| return AVERROR(EINVAL); | |
| } | |
| } | |
| if (c->ch_layouts) { | |
| for (i = 0; c->ch_layouts[i].nb_channels; i++) { | |
| if (!av_channel_layout_compare(&avctx->ch_layout, &c->ch_layouts[i])) | |
| break; | |
| } | |
| if (!c->ch_layouts[i].nb_channels) { | |
| char buf[512]; | |
| int ret = av_channel_layout_describe(&avctx->ch_layout, buf, sizeof(buf)); | |
| av_log(avctx, AV_LOG_ERROR, | |
| "Specified channel layout '%s' is not supported by the %s encoder\n", | |
| ret > 0 ? buf : "?", c->name); | |
| av_log(avctx, AV_LOG_ERROR, "Supported channel layouts:\n"); | |
| for (int p = 0; c->ch_layouts[p].nb_channels; p++) { | |
| ret = av_channel_layout_describe(&c->ch_layouts[p], buf, sizeof(buf)); | |
| av_log(avctx, AV_LOG_ERROR, " %s\n", ret > 0 ? buf : "?"); | |
| } | |
| return AVERROR(EINVAL); | |
| } | |
| } | |
| if (!avctx->bits_per_raw_sample) | |
| avctx->bits_per_raw_sample = av_get_exact_bits_per_sample(avctx->codec_id); | |
| if (!avctx->bits_per_raw_sample) | |
| avctx->bits_per_raw_sample = 8 * av_get_bytes_per_sample(avctx->sample_fmt); | |
| return 0; | |
| } | |
| int ff_encode_preinit(AVCodecContext *avctx) | |
| { | |
| AVCodecInternal *avci = avctx->internal; | |
| EncodeContext *ec = encode_ctx(avci); | |
| int ret = 0; | |
| if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) { | |
| av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n"); | |
| return AVERROR(EINVAL); | |
| } | |
| if (avctx->bit_rate < 0) { | |
| av_log(avctx, AV_LOG_ERROR, "The encoder bitrate is negative.\n"); | |
| return AVERROR(EINVAL); | |
| } | |
| if (avctx->flags & AV_CODEC_FLAG_COPY_OPAQUE && | |
| !(avctx->codec->capabilities & AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE)) { | |
| av_log(avctx, AV_LOG_ERROR, "The copy_opaque flag is set, but the " | |
| "encoder does not support it.\n"); | |
| return AVERROR(EINVAL); | |
| } | |
| switch (avctx->codec_type) { | |
| case AVMEDIA_TYPE_VIDEO: ret = encode_preinit_video(avctx); break; | |
| case AVMEDIA_TYPE_AUDIO: ret = encode_preinit_audio(avctx); break; | |
| } | |
| if (ret < 0) | |
| return ret; | |
| if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO) | |
| && avctx->bit_rate>0 && avctx->bit_rate<1000) { | |
| av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate); | |
| } | |
| if (!avctx->rc_initial_buffer_occupancy) | |
| avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4; | |
| if (avctx->codec_descriptor->props & AV_CODEC_PROP_INTRA_ONLY) | |
| ec->intra_only_flag = AV_PKT_FLAG_KEY; | |
| if (ffcodec(avctx->codec)->cb_type == FF_CODEC_CB_TYPE_ENCODE) { | |
| avci->in_frame = av_frame_alloc(); | |
| if (!avci->in_frame) | |
| return AVERROR(ENOMEM); | |
| } | |
| if ((avctx->flags & AV_CODEC_FLAG_RECON_FRAME)) { | |
| if (!(avctx->codec->capabilities & AV_CODEC_CAP_ENCODER_RECON_FRAME)) { | |
| av_log(avctx, AV_LOG_ERROR, "Reconstructed frame output requested " | |
| "from an encoder not supporting it\n"); | |
| return AVERROR(ENOSYS); | |
| } | |
| avci->recon_frame = av_frame_alloc(); | |
| if (!avci->recon_frame) | |
| return AVERROR(ENOMEM); | |
| } | |
| if (CONFIG_FRAME_THREAD_ENCODER) { | |
| ret = ff_frame_thread_encoder_init(avctx); | |
| if (ret < 0) | |
| return ret; | |
| } | |
| return 0; | |
| } | |
| int ff_encode_alloc_frame(AVCodecContext *avctx, AVFrame *frame) | |
| { | |
| int ret; | |
| switch (avctx->codec->type) { | |
| case AVMEDIA_TYPE_VIDEO: | |
| frame->format = avctx->pix_fmt; | |
| if (frame->width <= 0 || frame->height <= 0) { | |
| frame->width = FFMAX(avctx->width, avctx->coded_width); | |
| frame->height = FFMAX(avctx->height, avctx->coded_height); | |
| } | |
| break; | |
| case AVMEDIA_TYPE_AUDIO: | |
| frame->sample_rate = avctx->sample_rate; | |
| 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; | |
| } | |
| break; | |
| } | |
| ret = avcodec_default_get_buffer2(avctx, frame, 0); | |
| if (ret < 0) { | |
| av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); | |
| av_frame_unref(frame); | |
| return ret; | |
| } | |
| return 0; | |
| } | |
| int ff_encode_receive_frame(AVCodecContext *avctx, AVFrame *frame) | |
| { | |
| AVCodecInternal *avci = avctx->internal; | |
| if (!avci->recon_frame) | |
| return AVERROR(EINVAL); | |
| if (!avci->recon_frame->buf[0]) | |
| return avci->draining_done ? AVERROR_EOF : AVERROR(EAGAIN); | |
| av_frame_move_ref(frame, avci->recon_frame); | |
| return 0; | |
| } | |
| void ff_encode_flush_buffers(AVCodecContext *avctx) | |
| { | |
| AVCodecInternal *avci = avctx->internal; | |
| if (avci->in_frame) | |
| av_frame_unref(avci->in_frame); | |
| if (avci->recon_frame) | |
| av_frame_unref(avci->recon_frame); | |
| } | |
| AVCodecInternal *ff_encode_internal_alloc(void) | |
| { | |
| return av_mallocz(sizeof(EncodeContext)); | |
| } | |
| AVCPBProperties *ff_encode_add_cpb_side_data(AVCodecContext *avctx) | |
| { | |
| AVPacketSideData *tmp; | |
| AVCPBProperties *props; | |
| size_t size; | |
| int i; | |
| for (i = 0; i < avctx->nb_coded_side_data; i++) | |
| if (avctx->coded_side_data[i].type == AV_PKT_DATA_CPB_PROPERTIES) | |
| return (AVCPBProperties *)avctx->coded_side_data[i].data; | |
| props = av_cpb_properties_alloc(&size); | |
| if (!props) | |
| return NULL; | |
| tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp)); | |
| if (!tmp) { | |
| av_freep(&props); | |
| return NULL; | |
| } | |
| avctx->coded_side_data = tmp; | |
| avctx->nb_coded_side_data++; | |
| avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES; | |
| avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props; | |
| avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size; | |
| return props; | |
| } |