2021-01-01 21:35:17 +00:00
|
|
|
/*
|
|
|
|
* 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 "bsf_internal.h"
|
|
|
|
#include "cbs_bsf.h"
|
|
|
|
|
|
|
|
static int cbs_bsf_update_side_data(AVBSFContext *bsf, AVPacket *pkt)
|
|
|
|
{
|
|
|
|
CBSBSFContext *ctx = bsf->priv_data;
|
|
|
|
CodedBitstreamFragment *frag = &ctx->fragment;
|
|
|
|
uint8_t *side_data;
|
2021-03-06 16:29:37 +00:00
|
|
|
buffer_size_t side_data_size;
|
2021-01-01 21:35:17 +00:00
|
|
|
int err;
|
|
|
|
|
|
|
|
side_data = av_packet_get_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA,
|
|
|
|
&side_data_size);
|
|
|
|
if (!side_data_size)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
err = ff_cbs_read(ctx->input, frag, side_data, side_data_size);
|
|
|
|
if (err < 0) {
|
|
|
|
av_log(bsf, AV_LOG_ERROR,
|
|
|
|
"Failed to read extradata from packet side data.\n");
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
err = ctx->type->update_fragment(bsf, NULL, frag);
|
|
|
|
if (err < 0)
|
|
|
|
return err;
|
|
|
|
|
|
|
|
err = ff_cbs_write_fragment_data(ctx->output, frag);
|
|
|
|
if (err < 0) {
|
|
|
|
av_log(bsf, AV_LOG_ERROR,
|
|
|
|
"Failed to write extradata into packet side data.\n");
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
side_data = av_packet_new_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA,
|
|
|
|
frag->data_size);
|
|
|
|
if (!side_data)
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
memcpy(side_data, frag->data, frag->data_size);
|
|
|
|
|
|
|
|
ff_cbs_fragment_reset(frag);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int ff_cbs_bsf_generic_filter(AVBSFContext *bsf, AVPacket *pkt)
|
|
|
|
{
|
|
|
|
CBSBSFContext *ctx = bsf->priv_data;
|
|
|
|
CodedBitstreamFragment *frag = &ctx->fragment;
|
|
|
|
int err;
|
|
|
|
|
|
|
|
err = ff_bsf_get_packet_ref(bsf, pkt);
|
|
|
|
if (err < 0)
|
|
|
|
return err;
|
|
|
|
|
|
|
|
err = cbs_bsf_update_side_data(bsf, pkt);
|
|
|
|
if (err < 0)
|
|
|
|
goto fail;
|
|
|
|
|
|
|
|
err = ff_cbs_read_packet(ctx->input, frag, pkt);
|
|
|
|
if (err < 0) {
|
|
|
|
av_log(bsf, AV_LOG_ERROR, "Failed to read %s from packet.\n",
|
|
|
|
ctx->type->fragment_name);
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (frag->nb_units == 0) {
|
|
|
|
av_log(bsf, AV_LOG_ERROR, "No %s found in packet.\n",
|
|
|
|
ctx->type->unit_name);
|
|
|
|
err = AVERROR_INVALIDDATA;
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
|
|
|
|
err = ctx->type->update_fragment(bsf, pkt, frag);
|
|
|
|
if (err < 0)
|
|
|
|
goto fail;
|
|
|
|
|
|
|
|
err = ff_cbs_write_packet(ctx->output, pkt, frag);
|
|
|
|
if (err < 0) {
|
|
|
|
av_log(bsf, AV_LOG_ERROR, "Failed to write %s into packet.\n",
|
|
|
|
ctx->type->fragment_name);
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
|
|
|
|
err = 0;
|
|
|
|
fail:
|
|
|
|
ff_cbs_fragment_reset(frag);
|
|
|
|
|
|
|
|
if (err < 0)
|
|
|
|
av_packet_unref(pkt);
|
|
|
|
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
int ff_cbs_bsf_generic_init(AVBSFContext *bsf, const CBSBSFType *type)
|
|
|
|
{
|
|
|
|
CBSBSFContext *ctx = bsf->priv_data;
|
|
|
|
CodedBitstreamFragment *frag = &ctx->fragment;
|
|
|
|
int err;
|
|
|
|
|
|
|
|
ctx->type = type;
|
|
|
|
|
|
|
|
err = ff_cbs_init(&ctx->input, type->codec_id, bsf);
|
|
|
|
if (err < 0)
|
|
|
|
return err;
|
|
|
|
|
|
|
|
err = ff_cbs_init(&ctx->output, type->codec_id, bsf);
|
|
|
|
if (err < 0)
|
|
|
|
return err;
|
|
|
|
|
|
|
|
if (bsf->par_in->extradata) {
|
|
|
|
err = ff_cbs_read_extradata(ctx->input, frag, bsf->par_in);
|
|
|
|
if (err < 0) {
|
|
|
|
av_log(bsf, AV_LOG_ERROR, "Failed to read extradata.\n");
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
|
|
|
|
err = type->update_fragment(bsf, NULL, frag);
|
|
|
|
if (err < 0)
|
|
|
|
goto fail;
|
|
|
|
|
|
|
|
err = ff_cbs_write_extradata(ctx->output, bsf->par_out, frag);
|
|
|
|
if (err < 0) {
|
|
|
|
av_log(bsf, AV_LOG_ERROR, "Failed to write extradata.\n");
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
err = 0;
|
|
|
|
fail:
|
|
|
|
ff_cbs_fragment_reset(frag);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
void ff_cbs_bsf_generic_close(AVBSFContext *bsf)
|
|
|
|
{
|
|
|
|
CBSBSFContext *ctx = bsf->priv_data;
|
|
|
|
|
|
|
|
ff_cbs_fragment_free(&ctx->fragment);
|
|
|
|
ff_cbs_close(&ctx->input);
|
|
|
|
ff_cbs_close(&ctx->output);
|
|
|
|
}
|