videolan/ffmpeg
1
Fork 0
mirror of https://git.videolan.org/git/ffmpeg.git synced 2024-07-25 05:31:29 +02:00
Code Releases Activity

omx: Use the EOS flag to handle flushing at the end

Browse Source 
This avoids having to count the number of frames sent to the codec
and the number of output packets received; instead just wait until
the encoder returns a buffer with the EOS flag set.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2017-02-07 00:25:19 +02:00
parent dad7a9c7c0
commit 57ec83e424
1 changed files with 23 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
libavcodec/omx.c
View File

@ -220,7 +220,7 @@ typedef struct OMXCodecContext {
int mutex_cond_inited;
int num_in_frames, num_out_frames;
int eos_sent, got_eos;
uint8_t *output_buf;
int output_buf_size;
@ -791,17 +791,35 @@ static int omx_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
av_log(avctx, AV_LOG_ERROR, "OMX_EmptyThisBuffer failed: %x\n", err);
return AVERROR_UNKNOWN;
}
s->num_in_frames++;
} else if (!s->eos_sent) {
buffer = get_buffer(&s->input_mutex, &s->input_cond,
&s->num_free_in_buffers, s->free_in_buffers, 1);
buffer->nFilledLen = 0;
buffer->nFlags = OMX_BUFFERFLAG_EOS;
buffer->pAppPrivate = buffer->pOutputPortPrivate = NULL;
err = OMX_EmptyThisBuffer(s->handle, buffer);
if (err != OMX_ErrorNone) {
append_buffer(&s->input_mutex, &s->input_cond, &s->num_free_in_buffers, s->free_in_buffers, buffer);
av_log(avctx, AV_LOG_ERROR, "OMX_EmptyThisBuffer failed: %x\n", err);
return AVERROR_UNKNOWN;
}
s->eos_sent = 1;
}
while (!*got_packet && ret == 0) {
// Only wait for output if flushing and not all frames have been output
while (!*got_packet && ret == 0 && !s->got_eos) {
// If not flushing, just poll the queue if there's finished packets.
// If flushing, do a blocking wait until we either get a completed
// packet, or get EOS.
buffer = get_buffer(&s->output_mutex, &s->output_cond,
&s->num_done_out_buffers, s->done_out_buffers,
!frame && s->num_out_frames < s->num_in_frames);
!frame);
if (!buffer)
break;
if (buffer->nFlags & OMX_BUFFERFLAG_EOS)
s->got_eos = 1;
if (buffer->nFlags & OMX_BUFFERFLAG_CODECCONFIG && avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
if ((ret = av_reallocp(&avctx->extradata, avctx->extradata_size + buffer->nFilledLen + AV_INPUT_BUFFER_PADDING_SIZE)) < 0) {
avctx->extradata_size = 0;
@ -811,8 +829,6 @@ static int omx_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
avctx->extradata_size += buffer->nFilledLen;
memset(avctx->extradata + avctx->extradata_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
} else {
if (buffer->nFlags & OMX_BUFFERFLAG_ENDOFFRAME)
s->num_out_frames++;
if (!(buffer->nFlags & OMX_BUFFERFLAG_ENDOFFRAME) || !pkt->data) {
// If the output packet isn't preallocated, just concatenate everything in our
// own buffer