static GstFlowReturn
gst_schro_dec_chain (GstPad *pad, GstBuffer *buf)
{
GstSchroDec *schro_dec;
schro_dec = GST_SCHRO_DEC (GST_PAD_PARENT (pad));
GST_DEBUG("timestamp offset %lld, buffer %lld gp %lld, size %d",
schro_dec->timestamp_offset, GST_BUFFER_TIMESTAMP(buf),
GST_BUFFER_OFFSET_END(buf), GST_BUFFER_SIZE(buf));
if (G_UNLIKELY (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DISCONT))) {
GST_DEBUG_OBJECT (schro_dec, "received DISCONT buffer");
schro_decoder_reset (schro_dec->decoder);
schro_dec->timestamp_offset = GST_CLOCK_TIME_NONE;
schro_dec->granulepos_offset = -1;
schro_dec->granulepos = -1;
schro_dec->discont = TRUE;
}
if (!GST_CLOCK_TIME_IS_VALID(schro_dec->timestamp_offset) &&
GST_BUFFER_TIMESTAMP_IS_VALID(buf)) {
schro_dec->timestamp_offset = GST_BUFFER_TIMESTAMP(buf);
GST_DEBUG("setting timestamp offset to %lld", schro_dec->timestamp_offset);
}
if (schro_dec->granulepos_offset == -1 &&
GST_BUFFER_OFFSET_END(buf) != -1) {
schro_dec->granulepos_offset = GST_BUFFER_OFFSET_END(buf);
GST_DEBUG("setting granulepos offset to %lld", GST_BUFFER_OFFSET_END(buf));
}
gst_adapter_push (schro_dec->adapter, buf);
return gst_schro_dec_push_all (schro_dec, FALSE);
}
static void libschroedinger_flush(AVCodecContext *avctx)
{
/* Got a seek request. Free the decoded frames queue and then reset
* the decoder */
SchroDecoderParams *p_schro_params = avctx->priv_data;
/* Free data in the output frame queue. */
ff_schro_queue_free(&p_schro_params->dec_frame_queue,
libschroedinger_decode_frame_free);
ff_schro_queue_init(&p_schro_params->dec_frame_queue);
schro_decoder_reset(p_schro_params->decoder);
p_schro_params->eos_pulled = 0;
p_schro_params->eos_signalled = 0;
}
static void resync_schroedinger(bgav_stream_t * s)
{
schroedinger_priv_t * priv;
priv = s->decoder_priv;
/* TODO: Skip non-keyframes and update out_time */
schro_decoder_reset(priv->dec);
bgav_pts_cache_clear(&priv->pc);
if(priv->dec_frame)
{
schro_frame_unref(priv->dec_frame);
priv->dec_frame = NULL;
}
priv->eof = 0;
priv->buffer_size = 0;
priv->last_pts = GAVL_TIME_UNDEFINED;
}
static int libschroedinger_decode_frame(AVCodecContext *avctx,
void *data, int *got_frame,
AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
int64_t pts = avpkt->pts;
SchroTag *tag;
SchroDecoderParams *p_schro_params = avctx->priv_data;
SchroDecoder *decoder = p_schro_params->decoder;
SchroBuffer *enc_buf;
SchroFrame* frame;
AVFrame *avframe = data;
int state;
int go = 1;
int outer = 1;
SchroParseUnitContext parse_ctx;
LibSchroFrameContext *framewithpts = NULL;
*got_frame = 0;
parse_context_init(&parse_ctx, buf, buf_size);
if (!buf_size) {
if (!p_schro_params->eos_signalled) {
state = schro_decoder_push_end_of_stream(decoder);
p_schro_params->eos_signalled = 1;
}
}
/* Loop through all the individual parse units in the input buffer */
do {
if ((enc_buf = find_next_parse_unit(&parse_ctx))) {
/* Set Schrotag with the pts to be recovered after decoding*/
enc_buf->tag = schro_tag_new(av_malloc(sizeof(int64_t)), av_free);
if (!enc_buf->tag->value) {
av_log(avctx, AV_LOG_ERROR, "Unable to allocate SchroTag\n");
return AVERROR(ENOMEM);
}
AV_WN(64, enc_buf->tag->value, pts);
/* Push buffer into decoder. */
if (SCHRO_PARSE_CODE_IS_PICTURE(enc_buf->data[4]) &&
SCHRO_PARSE_CODE_NUM_REFS(enc_buf->data[4]) > 0)
avctx->has_b_frames = 1;
state = schro_decoder_push(decoder, enc_buf);
if (state == SCHRO_DECODER_FIRST_ACCESS_UNIT)
libschroedinger_handle_first_access_unit(avctx);
go = 1;
} else
outer = 0;
while (go) {
/* Parse data and process result. */
state = schro_decoder_wait(decoder);
switch (state) {
case SCHRO_DECODER_FIRST_ACCESS_UNIT:
libschroedinger_handle_first_access_unit(avctx);
break;
case SCHRO_DECODER_NEED_BITS:
/* Need more input data - stop iterating over what we have. */
go = 0;
break;
case SCHRO_DECODER_NEED_FRAME:
/* Decoder needs a frame - create one and push it in. */
frame = ff_create_schro_frame(avctx,
p_schro_params->frame_format);
if (!frame)
return AVERROR(ENOMEM);
schro_decoder_add_output_picture(decoder, frame);
break;
case SCHRO_DECODER_OK:
/* Pull a frame out of the decoder. */
tag = schro_decoder_get_picture_tag(decoder);
frame = schro_decoder_pull(decoder);
if (frame) {
/* Add relation between schroframe and pts. */
framewithpts = av_malloc(sizeof(LibSchroFrameContext));
if (!framewithpts) {
av_log(avctx, AV_LOG_ERROR, "Unable to allocate FrameWithPts\n");
return AVERROR(ENOMEM);
}
framewithpts->frame = frame;
framewithpts->pts = AV_RN64(tag->value);
ff_schro_queue_push_back(&p_schro_params->dec_frame_queue,
framewithpts);
}
break;
case SCHRO_DECODER_EOS:
go = 0;
p_schro_params->eos_pulled = 1;
schro_decoder_reset(decoder);
outer = 0;
break;
case SCHRO_DECODER_ERROR:
return -1;
break;
}
}
} while (outer);
/* Grab next frame to be returned from the top of the queue. */
framewithpts = ff_schro_queue_pop(&p_schro_params->dec_frame_queue);
if (framewithpts && framewithpts->frame) {
int ret;
if ((ret = ff_get_buffer(avctx, avframe, 0)) < 0)
return ret;
memcpy(avframe->data[0],
framewithpts->frame->components[0].data,
framewithpts->frame->components[0].length);
memcpy(avframe->data[1],
framewithpts->frame->components[1].data,
framewithpts->frame->components[1].length);
memcpy(avframe->data[2],
framewithpts->frame->components[2].data,
framewithpts->frame->components[2].length);
/* Fill frame with current buffer data from Schroedinger. */
avframe->pkt_pts = framewithpts->pts;
avframe->linesize[0] = framewithpts->frame->components[0].stride;
avframe->linesize[1] = framewithpts->frame->components[1].stride;
avframe->linesize[2] = framewithpts->frame->components[2].stride;
*got_frame = 1;
/* Now free the frame resources. */
libschroedinger_decode_frame_free(framewithpts->frame);
av_free(framewithpts);
} else {
data = NULL;
*got_frame = 0;
}
return buf_size;
}
static int libschroedinger_decode_frame(AVCodecContext *avccontext,
void *data, int *data_size,
AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
FfmpegSchroDecoderParams *p_schro_params = avccontext->priv_data;
SchroDecoder *decoder = p_schro_params->decoder;
SchroVideoFormat *format;
AVPicture *picture = data;
SchroBuffer *enc_buf;
SchroFrame* frame;
int state;
int go = 1;
int outer = 1;
FfmpegSchroParseUnitContext parse_ctx;
*data_size = 0;
FfmpegSchroParseContextInit(&parse_ctx, buf, buf_size);
if (!buf_size) {
if (!p_schro_params->eos_signalled) {
state = schro_decoder_push_end_of_stream(decoder);
p_schro_params->eos_signalled = 1;
}
}
/* Loop through all the individual parse units in the input buffer */
do {
if ((enc_buf = FfmpegFindNextSchroParseUnit(&parse_ctx))) {
/* Push buffer into decoder. */
if (SCHRO_PARSE_CODE_IS_PICTURE(enc_buf->data[4]) &&
SCHRO_PARSE_CODE_NUM_REFS(enc_buf->data[4]) > 0)
avccontext->has_b_frames = 1;
state = schro_decoder_push(decoder, enc_buf);
if (state == SCHRO_DECODER_FIRST_ACCESS_UNIT)
libschroedinger_handle_first_access_unit(avccontext);
go = 1;
} else
outer = 0;
format = p_schro_params->format;
while (go) {
/* Parse data and process result. */
state = schro_decoder_wait(decoder);
switch (state) {
case SCHRO_DECODER_FIRST_ACCESS_UNIT:
libschroedinger_handle_first_access_unit(avccontext);
break;
case SCHRO_DECODER_NEED_BITS:
/* Need more input data - stop iterating over what we have. */
go = 0;
break;
case SCHRO_DECODER_NEED_FRAME:
/* Decoder needs a frame - create one and push it in. */
frame = ff_create_schro_frame(avccontext,
p_schro_params->frame_format);
schro_decoder_add_output_picture(decoder, frame);
break;
case SCHRO_DECODER_OK:
/* Pull a frame out of the decoder. */
frame = schro_decoder_pull(decoder);
if (frame)
ff_dirac_schro_queue_push_back(&p_schro_params->dec_frame_queue,
frame);
break;
case SCHRO_DECODER_EOS:
go = 0;
p_schro_params->eos_pulled = 1;
schro_decoder_reset(decoder);
outer = 0;
break;
case SCHRO_DECODER_ERROR:
return -1;
break;
}
}
} while (outer);
/* Grab next frame to be returned from the top of the queue. */
frame = ff_dirac_schro_queue_pop(&p_schro_params->dec_frame_queue);
if (frame) {
memcpy(p_schro_params->dec_pic.data[0],
frame->components[0].data,
frame->components[0].length);
memcpy(p_schro_params->dec_pic.data[1],
frame->components[1].data,
frame->components[1].length);
memcpy(p_schro_params->dec_pic.data[2],
frame->components[2].data,
frame->components[2].length);
/* Fill picture with current buffer data from Schroedinger. */
avpicture_fill(picture, p_schro_params->dec_pic.data[0],
avccontext->pix_fmt,
avccontext->width, avccontext->height);
*data_size = sizeof(AVPicture);
/* Now free the frame resources. */
libschroedinger_decode_frame_free(frame);
}
return buf_size;
}
static int libschroedinger_decode_frame(AVCodecContext *avccontext,
void *data, int *data_size,
const uint8_t *buf, int buf_size)
{
FfmpegSchroDecoderParams *p_schro_params = avccontext->priv_data;
SchroDecoder *decoder = p_schro_params->decoder;
SchroVideoFormat *format;
AVPicture *picture = data;
SchroBuffer *enc_buf;
SchroFrame* frame;
int state;
int go = 1;
*data_size = 0;
if (buf_size>0) {
unsigned char *in_buf = av_malloc(buf_size);
memcpy (in_buf, buf, buf_size);
enc_buf = schro_buffer_new_with_data (in_buf, buf_size);
enc_buf->free = libschroedinger_decode_buffer_free;
enc_buf->priv = in_buf;
/* Push buffer into decoder. */
state = schro_decoder_push (decoder, enc_buf);
if (state == SCHRO_DECODER_FIRST_ACCESS_UNIT)
libschroedinger_handle_first_access_unit(avccontext);
} else {
if (!p_schro_params->eos_signalled) {
state = schro_decoder_push_end_of_stream(decoder);
p_schro_params->eos_signalled = 1;
}
}
format = p_schro_params->format;
while (go) {
/* Parse data and process result. */
state = schro_decoder_wait (decoder);
switch (state)
{
case SCHRO_DECODER_FIRST_ACCESS_UNIT:
libschroedinger_handle_first_access_unit (avccontext);
break;
case SCHRO_DECODER_NEED_BITS:
/* Need more input data - stop iterating over what we have. */
go = 0;
break;
case SCHRO_DECODER_NEED_FRAME:
/* Decoder needs a frame - create one and push it in. */
frame = schro_frame_new_and_alloc(NULL,
p_schro_params->frame_format,
format->width,
format->height);
schro_decoder_add_output_picture (decoder, frame);
break;
case SCHRO_DECODER_OK:
/* Pull a frame out of the decoder. */
frame = schro_decoder_pull (decoder);
if (frame) {
ff_dirac_schro_queue_push_back(
&p_schro_params->dec_frame_queue,
frame);
}
break;
case SCHRO_DECODER_EOS:
go = 0;
p_schro_params->eos_pulled = 1;
schro_decoder_reset (decoder);
break;
case SCHRO_DECODER_ERROR:
return -1;
break;
}
}
/* Grab next frame to be returned from the top of the queue. */
frame = ff_dirac_schro_queue_pop(&p_schro_params->dec_frame_queue);
if (frame != NULL) {
memcpy (p_schro_params->dec_pic.data[0],
frame->components[0].data,
frame->components[0].length);
memcpy (p_schro_params->dec_pic.data[1],
frame->components[1].data,
frame->components[1].length);
memcpy (p_schro_params->dec_pic.data[2],
frame->components[2].data,
frame->components[2].length);
/* Fill picture with current buffer data from Schroedinger. */
avpicture_fill(picture, p_schro_params->dec_pic.data[0],
avccontext->pix_fmt,
avccontext->width, avccontext->height);
*data_size = sizeof(AVPicture);
/* Now free the frame resources. */
libschroedinger_decode_frame_free (frame);
}
return buf_size;
}
