diff options
author | James Almer <jamrial@gmail.com> | 2017-04-07 00:42:38 -0300 |
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committer | James Almer <jamrial@gmail.com> | 2017-04-07 00:42:38 -0300 |
commit | bd9057e74bcddd8893596e02d52e938e63c8cd6a (patch) | |
tree | f66150d7d9d1691cecea5d232c4f6394a31e41c9 /libavcodec/utils.c | |
parent | 51d8a2572fd8d945d4e7a87b241e894b7f058dc0 (diff) | |
parent | 328cd2b599bc2d0d38f3c12606fa2a66eeec016e (diff) |
Merge commit '328cd2b599bc2d0d38f3c12606fa2a66eeec016e'
* commit '328cd2b599bc2d0d38f3c12606fa2a66eeec016e':
lavc: move encoding-related code from utils.c to a new file
Merged-by: James Almer <jamrial@gmail.com>
Diffstat (limited to 'libavcodec/utils.c')
-rw-r--r-- | libavcodec/utils.c | 424 |
1 files changed, 0 insertions, 424 deletions
diff --git a/libavcodec/utils.c b/libavcodec/utils.c index ff95ceac8b..d726ff789f 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -1734,337 +1734,6 @@ FF_ENABLE_DEPRECATION_WARNINGS goto end; } -int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size) -{ - if (avpkt->size < 0) { - av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size); - return AVERROR(EINVAL); - } - 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); - } - - if (avctx && 2*min_size < size) { // FIXME The factor needs to be finetuned - av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer); - if (!avpkt->data || avpkt->size < size) { - av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size); - avpkt->data = avctx->internal->byte_buffer; - avpkt->size = avctx->internal->byte_buffer_size; - } - } - - if (avpkt->data) { - AVBufferRef *buf = avpkt->buf; - - if (avpkt->size < size) { - av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size); - return AVERROR(EINVAL); - } - - av_init_packet(avpkt); - avpkt->buf = buf; - avpkt->size = size; - return 0; - } else { - int ret = av_new_packet(avpkt, size); - if (ret < 0) - av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size); - return ret; - } -} - -int ff_alloc_packet(AVPacket *avpkt, int size) -{ - return ff_alloc_packet2(NULL, avpkt, size, 0); -} - -/** - * Pad last frame with silence. - */ -static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src) -{ - AVFrame *frame = NULL; - int ret; - - if (!(frame = av_frame_alloc())) - return AVERROR(ENOMEM); - - frame->format = src->format; - frame->channel_layout = src->channel_layout; - av_frame_set_channels(frame, av_frame_get_channels(src)); - frame->nb_samples = s->frame_size; - ret = av_frame_get_buffer(frame, 32); - 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->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->channels, s->sample_fmt)) < 0) - goto fail; - - *dst = frame; - - return 0; - -fail: - av_frame_free(&frame); - return ret; -} - -int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx, - AVPacket *avpkt, - const AVFrame *frame, - int *got_packet_ptr) -{ - AVFrame *extended_frame = NULL; - AVFrame *padded_frame = NULL; - int ret; - AVPacket user_pkt = *avpkt; - int needs_realloc = !user_pkt.data; - - *got_packet_ptr = 0; - - if (!avctx->codec->encode2) { - av_log(avctx, AV_LOG_ERROR, "This encoder requires using the avcodec_send_frame() API.\n"); - return AVERROR(ENOSYS); - } - - if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) { - av_packet_unref(avpkt); - av_init_packet(avpkt); - return 0; - } - - /* ensure that extended_data is properly set */ - if (frame && !frame->extended_data) { - if (av_sample_fmt_is_planar(avctx->sample_fmt) && - avctx->channels > AV_NUM_DATA_POINTERS) { - av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, " - "with more than %d channels, but extended_data is not set.\n", - AV_NUM_DATA_POINTERS); - return AVERROR(EINVAL); - } - av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n"); - - extended_frame = av_frame_alloc(); - if (!extended_frame) - return AVERROR(ENOMEM); - - memcpy(extended_frame, frame, sizeof(AVFrame)); - extended_frame->extended_data = extended_frame->data; - frame = extended_frame; - } - - /* extract audio service type metadata */ - if (frame) { - AVFrameSideData *sd = av_frame_get_side_data(frame, 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 (frame) { - if (avctx->codec->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME) { - if (frame->nb_samples > avctx->frame_size) { - av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n"); - ret = AVERROR(EINVAL); - goto end; - } - } else if (!(avctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)) { - if (frame->nb_samples < avctx->frame_size && - !avctx->internal->last_audio_frame) { - ret = pad_last_frame(avctx, &padded_frame, frame); - if (ret < 0) - goto end; - - frame = padded_frame; - avctx->internal->last_audio_frame = 1; - } - - if (frame->nb_samples != avctx->frame_size) { - av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size); - ret = AVERROR(EINVAL); - goto end; - } - } - } - - av_assert0(avctx->codec->encode2); - - ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr); - if (!ret) { - if (*got_packet_ptr) { - if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) { - if (avpkt->pts == AV_NOPTS_VALUE) - avpkt->pts = frame->pts; - if (!avpkt->duration) - avpkt->duration = ff_samples_to_time_base(avctx, - frame->nb_samples); - } - avpkt->dts = avpkt->pts; - } else { - avpkt->size = 0; - } - } - if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) { - needs_realloc = 0; - if (user_pkt.data) { - if (user_pkt.size >= avpkt->size) { - memcpy(user_pkt.data, avpkt->data, avpkt->size); - } else { - av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size); - avpkt->size = user_pkt.size; - ret = -1; - } - avpkt->buf = user_pkt.buf; - avpkt->data = user_pkt.data; - } else { - if (av_dup_packet(avpkt) < 0) { - ret = AVERROR(ENOMEM); - } - } - } - - if (!ret) { - if (needs_realloc && avpkt->data) { - ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE); - if (ret >= 0) - avpkt->data = avpkt->buf->data; - } - - avctx->frame_number++; - } - - if (ret < 0 || !*got_packet_ptr) { - av_packet_unref(avpkt); - av_init_packet(avpkt); - goto end; - } - - /* NOTE: if we add any audio encoders which output non-keyframe packets, - * this needs to be moved to the encoders, but for now we can do it - * here to simplify things */ - avpkt->flags |= AV_PKT_FLAG_KEY; - -end: - av_frame_free(&padded_frame); - av_free(extended_frame); - -#if FF_API_AUDIOENC_DELAY - avctx->delay = avctx->initial_padding; -#endif - - return ret; -} - -int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx, - AVPacket *avpkt, - const AVFrame *frame, - int *got_packet_ptr) -{ - int ret; - AVPacket user_pkt = *avpkt; - int needs_realloc = !user_pkt.data; - - *got_packet_ptr = 0; - - if (!avctx->codec->encode2) { - av_log(avctx, AV_LOG_ERROR, "This encoder requires using the avcodec_send_frame() API.\n"); - return AVERROR(ENOSYS); - } - - if(CONFIG_FRAME_THREAD_ENCODER && - avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME)) - return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr); - - if ((avctx->flags&AV_CODEC_FLAG_PASS1) && avctx->stats_out) - avctx->stats_out[0] = '\0'; - - if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) { - av_packet_unref(avpkt); - av_init_packet(avpkt); - avpkt->size = 0; - return 0; - } - - if (av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx)) - return AVERROR(EINVAL); - - if (frame && frame->format == AV_PIX_FMT_NONE) - av_log(avctx, AV_LOG_WARNING, "AVFrame.format is not set\n"); - if (frame && (frame->width == 0 || frame->height == 0)) - av_log(avctx, AV_LOG_WARNING, "AVFrame.width or height is not set\n"); - - av_assert0(avctx->codec->encode2); - - ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr); - av_assert0(ret <= 0); - - emms_c(); - - if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) { - needs_realloc = 0; - if (user_pkt.data) { - if (user_pkt.size >= avpkt->size) { - memcpy(user_pkt.data, avpkt->data, avpkt->size); - } else { - av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size); - avpkt->size = user_pkt.size; - ret = -1; - } - avpkt->buf = user_pkt.buf; - avpkt->data = user_pkt.data; - } else { - if (av_dup_packet(avpkt) < 0) { - ret = AVERROR(ENOMEM); - } - } - } - - if (!ret) { - if (!*got_packet_ptr) - avpkt->size = 0; - else if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) - avpkt->pts = avpkt->dts = frame->pts; - - if (needs_realloc && avpkt->data) { - ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE); - if (ret >= 0) - avpkt->data = avpkt->buf->data; - } - - avctx->frame_number++; - } - - if (ret < 0 || !*got_packet_ptr) - av_packet_unref(avpkt); - - 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 = avctx->codec->encode_sub(avctx, buf, buf_size, sub); - avctx->frame_number++; - return ret; -} - /** * Attempt to guess proper monotonic timestamps for decoded video frames * which might have incorrect times. Input timestamps may wrap around, in @@ -2968,99 +2637,6 @@ int attribute_align_arg avcodec_receive_frame(AVCodecContext *avctx, AVFrame *fr return 0; } -static int do_encode(AVCodecContext *avctx, const AVFrame *frame, int *got_packet) -{ - int ret; - *got_packet = 0; - - av_packet_unref(avctx->internal->buffer_pkt); - avctx->internal->buffer_pkt_valid = 0; - - if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) { - ret = avcodec_encode_video2(avctx, avctx->internal->buffer_pkt, - frame, got_packet); - } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) { - ret = avcodec_encode_audio2(avctx, avctx->internal->buffer_pkt, - frame, got_packet); - } else { - ret = AVERROR(EINVAL); - } - - if (ret >= 0 && *got_packet) { - // Encoders must always return ref-counted buffers. - // Side-data only packets have no data and can be not ref-counted. - av_assert0(!avctx->internal->buffer_pkt->data || avctx->internal->buffer_pkt->buf); - avctx->internal->buffer_pkt_valid = 1; - ret = 0; - } else { - av_packet_unref(avctx->internal->buffer_pkt); - } - - return ret; -} - -int attribute_align_arg avcodec_send_frame(AVCodecContext *avctx, const AVFrame *frame) -{ - if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec)) - return AVERROR(EINVAL); - - if (avctx->internal->draining) - return AVERROR_EOF; - - if (!frame) { - avctx->internal->draining = 1; - - if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) - return 0; - } - - if (avctx->codec->send_frame) - return avctx->codec->send_frame(avctx, frame); - - // Emulation via old API. Do it here instead of avcodec_receive_packet, because: - // 1. if the AVFrame is not refcounted, the copying will be much more - // expensive than copying the packet data - // 2. assume few users use non-refcounted AVPackets, so usually no copy is - // needed - - if (avctx->internal->buffer_pkt_valid) - return AVERROR(EAGAIN); - - return do_encode(avctx, frame, &(int){0}); -} - -int attribute_align_arg avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt) -{ - av_packet_unref(avpkt); - - if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec)) - return AVERROR(EINVAL); - - if (avctx->codec->receive_packet) { - if (avctx->internal->draining && !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) - return AVERROR_EOF; - return avctx->codec->receive_packet(avctx, avpkt); - } - - // Emulation via old API. - - if (!avctx->internal->buffer_pkt_valid) { - int got_packet; - int ret; - if (!avctx->internal->draining) - return AVERROR(EAGAIN); - ret = do_encode(avctx, NULL, &got_packet); - if (ret < 0) - return ret; - if (ret >= 0 && !got_packet) - return AVERROR_EOF; - } - - av_packet_move_ref(avpkt, avctx->internal->buffer_pkt); - avctx->internal->buffer_pkt_valid = 0; - return 0; -} - av_cold int avcodec_close(AVCodecContext *avctx) { int i; |