| /* |
| * 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/mem.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->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); |
| } |
| |
| for (int i = 0; ff_sd_global_map[i].packet < AV_PKT_DATA_NB; i++) { |
| const enum AVPacketSideDataType type_packet = ff_sd_global_map[i].packet; |
| const enum AVFrameSideDataType type_frame = ff_sd_global_map[i].frame; |
| const AVFrameSideData *sd_frame; |
| AVPacketSideData *sd_packet; |
| |
| sd_frame = av_frame_side_data_get(avctx->decoded_side_data, |
| avctx->nb_decoded_side_data, |
| type_frame); |
| if (!sd_frame || |
| av_packet_side_data_get(avctx->coded_side_data, avctx->nb_coded_side_data, |
| type_packet)) |
| |
| continue; |
| |
| sd_packet = av_packet_side_data_new(&avctx->coded_side_data, &avctx->nb_coded_side_data, |
| type_packet, sd_frame->size, 0); |
| if (!sd_packet) |
| return AVERROR(ENOMEM); |
| |
| memcpy(sd_packet->data, sd_frame->data, sd_frame->size); |
| } |
| |
| 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; |
| } |
