static int decode_new_packet(struct sh_audio *sh)
{
struct priv *priv = sh->context;
AVCodecContext *avctx = priv->avctx;
double pts = MP_NOPTS_VALUE;
int insize;
bool packet_already_used = priv->previous_data_left;
struct demux_packet *mpkt = ds_get_packet2(sh->ds,
priv->previous_data_left);
unsigned char *start;
if (!mpkt) {
assert(!priv->previous_data_left);
start = NULL;
insize = 0;
ds_parse(sh->ds, &start, &insize, pts, 0);
if (insize <= 0)
return -1; // error or EOF
} else {
assert(mpkt->len >= priv->previous_data_left);
if (!priv->previous_data_left) {
priv->previous_data_left = mpkt->len;
pts = mpkt->pts;
}
insize = priv->previous_data_left;
start = mpkt->buffer + mpkt->len - priv->previous_data_left;
int consumed = ds_parse(sh->ds, &start, &insize, pts, 0);
priv->previous_data_left -= consumed;
priv->previous_data_left = FFMAX(priv->previous_data_left, 0);
}
AVPacket pkt;
av_init_packet(&pkt);
pkt.data = start;
pkt.size = insize;
if (mpkt && mpkt->avpacket) {
pkt.side_data = mpkt->avpacket->side_data;
pkt.side_data_elems = mpkt->avpacket->side_data_elems;
}
if (pts != MP_NOPTS_VALUE && !packet_already_used) {
sh->pts = pts;
sh->pts_bytes = 0;
}
int got_frame = 0;
int ret = avcodec_decode_audio4(avctx, priv->avframe, &got_frame, &pkt);
// LATM may need many packets to find mux info
if (ret == AVERROR(EAGAIN))
return 0;
if (ret < 0) {
mp_msg(MSGT_DECAUDIO, MSGL_V, "lavc_audio: error\n");
return -1;
}
// The "insize >= ret" test is sanity check against decoder overreads
if (!sh->parser && insize >= ret)
priv->previous_data_left = insize - ret;
if (!got_frame)
return 0;
int format_result = setup_format(sh);
if (format_result < 0)
return format_result;
#ifdef CONFIG_LIBAVRESAMPLE
if (priv->avr) {
int ret;
uint64_t needed_size = av_samples_get_buffer_size(
NULL, priv->resample_channels, priv->avframe->nb_samples,
priv->resample_fmt, 0);
if (needed_size > priv->resample_buf_size) {
priv->resample_buf = talloc_realloc(priv, priv->resample_buf,
uint8_t, needed_size);
priv->resample_buf_size = needed_size;
}
ret = avresample_convert(priv->avr, &priv->resample_buf,
priv->resample_buf_size, priv->avframe->nb_samples,
priv->avframe->extended_data, priv->avframe->linesize[0],
priv->avframe->nb_samples);
if (ret < 0) {
uint8_t error[128];
av_strerror(ret, error, sizeof(error));
mp_msg(MSGT_DECAUDIO, MSGL_ERR,
"Error during sample format conversion: %s.\n", error);
return -1;
}
assert(ret == priv->avframe->nb_samples);
priv->output = priv->resample_buf;
priv->output_left = priv->unitsize * ret;
} else
#endif
{
uint64_t unitsize = av_get_bytes_per_sample(avctx->sample_fmt) *
(uint64_t)avctx->channels;
if (unitsize > 100000)
abort();
priv->unitsize = unitsize;
uint64_t output_left = unitsize * priv->avframe->nb_samples;
if (output_left > 500000000)
abort();
priv->output_left = output_left;
priv->output = priv->avframe->data[0];
}
mp_dbg(MSGT_DECAUDIO, MSGL_DBG2, "Decoded %d -> %d \n", insize,
priv->output_left);
return format_result;
}
static int decode_new_packet(struct sh_audio *sh)
{
struct priv *priv = sh->context;
AVCodecContext *avctx = priv->avctx;
double pts = MP_NOPTS_VALUE;
int insize;
bool packet_already_used = priv->previous_data_left;
struct demux_packet *mpkt = ds_get_packet2(sh->ds,
priv->previous_data_left);
unsigned char *start;
if (!mpkt) {
assert(!priv->previous_data_left);
start = NULL;
insize = 0;
ds_parse(sh->ds, &start, &insize, pts, 0);
if (insize <= 0)
return -1; // error or EOF
} else {
assert(mpkt->len >= priv->previous_data_left);
if (!priv->previous_data_left) {
priv->previous_data_left = mpkt->len;
pts = mpkt->pts;
}
insize = priv->previous_data_left;
start = mpkt->buffer + mpkt->len - priv->previous_data_left;
int consumed = ds_parse(sh->ds, &start, &insize, pts, 0);
priv->previous_data_left -= consumed;
}
AVPacket pkt;
av_init_packet(&pkt);
pkt.data = start;
pkt.size = insize;
if (mpkt && mpkt->avpacket) {
pkt.side_data = mpkt->avpacket->side_data;
pkt.side_data_elems = mpkt->avpacket->side_data_elems;
}
if (pts != MP_NOPTS_VALUE && !packet_already_used) {
sh->pts = pts;
sh->pts_bytes = 0;
}
int got_frame = 0;
int ret = avcodec_decode_audio4(avctx, priv->avframe, &got_frame, &pkt);
// LATM may need many packets to find mux info
if (ret == AVERROR(EAGAIN))
return 0;
if (ret < 0) {
mp_msg(MSGT_DECAUDIO, MSGL_V, "lavc_audio: error\n");
return -1;
}
if (!sh->parser)
priv->previous_data_left += insize - ret;
if (!got_frame)
return 0;
/* An error is reported later from output format checking, but make
* sure we don't crash by overreading first plane. */
if (av_sample_fmt_is_planar(avctx->sample_fmt) && avctx->channels > 1)
return 0;
uint64_t unitsize = (uint64_t)av_get_bytes_per_sample(avctx->sample_fmt) *
avctx->channels;
if (unitsize > 100000)
abort();
priv->unitsize = unitsize;
uint64_t output_left = unitsize * priv->avframe->nb_samples;
if (output_left > 500000000)
abort();
priv->output_left = output_left;
priv->output = priv->avframe->data[0];
mp_dbg(MSGT_DECAUDIO, MSGL_DBG2, "Decoded %d -> %d \n", insize,
priv->output_left);
return 0;
}
