* Dirac decoder support via Schroedinger libraries
* Copyright (c) 2008 BBC, Anuradha Suraparaju <asuraparaju at gmail dot com >
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * 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/imgutils.h"
+#include "libavutil/intreadwrite.h"
#include "avcodec.h"
-#include "libdirac_libschro.h"
#include "libschroedinger.h"
-#undef NDEBUG
-#include <assert.h>
-
-
#include <schroedinger/schro.h>
#include <schroedinger/schrodebug.h>
#include <schroedinger/schrovideoformat.h>
+/** SchroFrame and Pts relation */
+typedef struct LibSchroFrameContext {
+ SchroFrame *frame;
+ int64_t pts;
+} LibSchroFrameContext;
+
/** libschroedinger decoder private data */
typedef struct SchroDecoderParams {
/** Schroedinger video format */
SchroDecoder* decoder;
/** queue storing decoded frames */
- DiracSchroQueue dec_frame_queue;
+ FFSchroQueue dec_frame_queue;
/** end of sequence signalled */
int eos_signalled;
int eos_pulled;
/** decoded picture */
- AVPicture dec_pic;
+ AVFrame dec_frame;
} SchroDecoderParams;
typedef struct SchroParseUnitContext {
av_freep(&priv);
}
-static void SchroParseContextInit(SchroParseUnitContext *parse_ctx,
- const uint8_t *buf, int buf_size)
+static void parse_context_init(SchroParseUnitContext *parse_ctx,
+ const uint8_t *buf, int buf_size)
{
parse_ctx->buf = buf;
parse_ctx->buf_size = buf_size;
}
-static SchroBuffer *FindNextSchroParseUnit(SchroParseUnitContext *parse_ctx)
+static SchroBuffer *find_next_parse_unit(SchroParseUnitContext *parse_ctx)
{
SchroBuffer *enc_buf = NULL;
int next_pu_offset = 0;
}
/**
-* Returns Libav chroma format.
+* Returns FFmpeg chroma format.
*/
static enum PixelFormat get_chroma_format(SchroChromaFormat schro_pix_fmt)
{
return -1;
/* Initialize the decoded frame queue. */
- ff_dirac_schro_queue_init(&p_schro_params->dec_frame_queue);
+ ff_schro_queue_init(&p_schro_params->dec_frame_queue);
return 0;
}
p_schro_params->format = schro_decoder_get_video_format(decoder);
- /* Tell Libav about sequence details. */
- if (av_image_check_size(p_schro_params->format->width, p_schro_params->format->height,
- 0, avccontext) < 0) {
+ /* Tell FFmpeg about sequence details. */
+ if (av_image_check_size(p_schro_params->format->width,
+ p_schro_params->format->height, 0, avccontext) < 0) {
av_log(avccontext, AV_LOG_ERROR, "invalid dimensions (%dx%d)\n",
p_schro_params->format->width, p_schro_params->format->height);
avccontext->height = avccontext->width = 0;
avccontext->time_base.den = p_schro_params->format->frame_rate_numerator;
avccontext->time_base.num = p_schro_params->format->frame_rate_denominator;
-
- if (!p_schro_params->dec_pic.data[0])
- avpicture_alloc(&p_schro_params->dec_pic,
- avccontext->pix_fmt,
- avccontext->width,
- avccontext->height);
}
static int libschroedinger_decode_frame(AVCodecContext *avccontext,
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
+ int64_t pts = avpkt->pts;
+ SchroTag *tag;
SchroDecoderParams *p_schro_params = avccontext->priv_data;
SchroDecoder *decoder = p_schro_params->decoder;
- AVPicture *picture = data;
SchroBuffer *enc_buf;
SchroFrame* frame;
int state;
int go = 1;
int outer = 1;
SchroParseUnitContext parse_ctx;
+ LibSchroFrameContext *framewithpts = NULL;
*data_size = 0;
- SchroParseContextInit(&parse_ctx, buf, buf_size);
+ 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);
/* Loop through all the individual parse units in the input buffer */
do {
- if ((enc_buf = FindNextSchroParseUnit(&parse_ctx))) {
+ 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(avccontext, 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)
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)
- ff_dirac_schro_queue_push_back(&p_schro_params->dec_frame_queue,
- frame);
+ if (frame) {
+ /* Add relation between schroframe and pts. */
+ framewithpts = av_malloc(sizeof(LibSchroFrameContext));
+ if (!framewithpts) {
+ av_log(avccontext, 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;
} 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);
+ framewithpts = ff_schro_queue_pop(&p_schro_params->dec_frame_queue);
+
+ if (framewithpts && framewithpts->frame) {
+ if (p_schro_params->dec_frame.data[0])
+ avccontext->release_buffer(avccontext, &p_schro_params->dec_frame);
+ if (avccontext->get_buffer(avccontext, &p_schro_params->dec_frame) < 0) {
+ av_log(avccontext, AV_LOG_ERROR, "Unable to allocate buffer\n");
+ return AVERROR(ENOMEM);
+ }
- if (frame) {
- memcpy(p_schro_params->dec_pic.data[0],
- frame->components[0].data,
- frame->components[0].length);
+ memcpy(p_schro_params->dec_frame.data[0],
+ framewithpts->frame->components[0].data,
+ framewithpts->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_frame.data[1],
+ framewithpts->frame->components[1].data,
+ framewithpts->frame->components[1].length);
- memcpy(p_schro_params->dec_pic.data[2],
- frame->components[2].data,
- frame->components[2].length);
+ memcpy(p_schro_params->dec_frame.data[2],
+ framewithpts->frame->components[2].data,
+ framewithpts->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);
+ /* Fill frame with current buffer data from Schroedinger. */
+ p_schro_params->dec_frame.format = -1; /* Unknown -1 */
+ p_schro_params->dec_frame.width = framewithpts->frame->width;
+ p_schro_params->dec_frame.height = framewithpts->frame->height;
+ p_schro_params->dec_frame.pkt_pts = framewithpts->pts;
+ p_schro_params->dec_frame.linesize[0] = framewithpts->frame->components[0].stride;
+ p_schro_params->dec_frame.linesize[1] = framewithpts->frame->components[1].stride;
+ p_schro_params->dec_frame.linesize[2] = framewithpts->frame->components[2].stride;
- *data_size = sizeof(AVPicture);
+ *(AVFrame*)data = p_schro_params->dec_frame;
+ *data_size = sizeof(AVFrame);
/* Now free the frame resources. */
- libschroedinger_decode_frame_free(frame);
+ libschroedinger_decode_frame_free(framewithpts->frame);
+ av_free(framewithpts);
+ } else {
+ data = NULL;
+ *data_size = 0;
}
return buf_size;
}
schro_decoder_free(p_schro_params->decoder);
av_freep(&p_schro_params->format);
- avpicture_free(&p_schro_params->dec_pic);
+ if (p_schro_params->dec_frame.data[0])
+ avccontext->release_buffer(avccontext, &p_schro_params->dec_frame);
/* Free data in the output frame queue. */
- ff_dirac_schro_queue_free(&p_schro_params->dec_frame_queue,
- libschroedinger_decode_frame_free);
+ ff_schro_queue_free(&p_schro_params->dec_frame_queue,
+ libschroedinger_decode_frame_free);
return 0;
}
SchroDecoderParams *p_schro_params = avccontext->priv_data;
/* Free data in the output frame queue. */
- ff_dirac_schro_queue_free(&p_schro_params->dec_frame_queue,
- libschroedinger_decode_frame_free);
+ ff_schro_queue_free(&p_schro_params->dec_frame_queue,
+ libschroedinger_decode_frame_free);
- ff_dirac_schro_queue_init(&p_schro_params->dec_frame_queue);
+ 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;