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ad_spdif: set output format lazily

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Preparation for the following commit, which looks at the packet data
before deciding what to output.
This commit is contained in:
wm4 2015-05-19 21:34:30 +02:00
parent 10915000fb
commit a6d3a6919a
1 changed files with 27 additions and 15 deletions
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42
audio/decode/ad_spdif.c
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@ -34,6 +34,7 @@
struct spdifContext {
struct mp_log *log;
enum AVCodecID codec_id;
AVFormatContext *lavf_ctx;
int out_buffer_len;
uint8_t out_buffer[OUTBUF_SIZE];
@ -77,16 +78,24 @@ static int init(struct dec_audio *da, const char *decoder)
da->priv = spdif_ctx;
spdif_ctx->log = da->log;
spdif_ctx->codec_id = mp_codec_to_av_codec_id(decoder);
return spdif_ctx->codec_id != AV_CODEC_ID_NONE;
}
static int init_filter(struct dec_audio *da)
{
struct spdifContext *spdif_ctx = da->priv;
AVFormatContext *lavf_ctx = avformat_alloc_context();
if (!lavf_ctx)
goto fail;
spdif_ctx->lavf_ctx = lavf_ctx;
lavf_ctx->oformat = av_guess_format("spdif", NULL, NULL);
if (!lavf_ctx->oformat)
goto fail;
spdif_ctx->lavf_ctx = lavf_ctx;
void *buffer = av_mallocz(OUTBUF_SIZE);
if (!buffer)
abort();
@ -106,14 +115,14 @@ static int init(struct dec_audio *da, const char *decoder)
if (!stream)
goto fail;
stream->codec->codec_id = mp_codec_to_av_codec_id(decoder);
stream->codec->codec_id = spdif_ctx->codec_id;
AVDictionary *format_opts = NULL;
int num_channels = 0;
int sample_format = 0;
int samplerate = 0;
switch (stream->codec->codec_id) {
switch (spdif_ctx->codec_id) {
case AV_CODEC_ID_AAC:
sample_format = AF_FORMAT_S_AAC;
samplerate = 48000;
@ -127,13 +136,13 @@ static int init(struct dec_audio *da, const char *decoder)
case AV_CODEC_ID_DTS:
if (da->opts->dtshd) {
av_dict_set(&format_opts, "dtshd_rate", "768000", 0); // 4*192000
sample_format = AF_FORMAT_S_DTSHD;
samplerate = 192000;
num_channels = 2*4;
sample_format = AF_FORMAT_S_DTSHD;
samplerate = 192000;
num_channels = 2*4;
} else {
sample_format = AF_FORMAT_S_DTS;
samplerate = 48000;
num_channels = 2;
sample_format = AF_FORMAT_S_DTS;
samplerate = 48000;
num_channels = 2;
}
break;
case AV_CODEC_ID_EAC3:
@ -167,17 +176,16 @@ static int init(struct dec_audio *da, const char *decoder)
spdif_ctx->need_close = true;
return 1;
return 0;
fail:
uninit(da);
return 0;
return -1;
}
static int decode_packet(struct dec_audio *da, struct mp_audio **out)
{
struct spdifContext *spdif_ctx = da->priv;
AVFormatContext *lavf_ctx = spdif_ctx->lavf_ctx;
spdif_ctx->out_buffer_len = 0;
@ -195,9 +203,13 @@ static int decode_packet(struct dec_audio *da, struct mp_audio **out)
da->pts = mpkt->pts;
da->pts_offset = 0;
}
int ret = av_write_frame(lavf_ctx, &pkt);
if (!spdif_ctx->lavf_ctx) {
if (init_filter(da) < 0)
return AD_ERR;
}
int ret = av_write_frame(spdif_ctx->lavf_ctx, &pkt);
talloc_free(mpkt);
avio_flush(lavf_ctx->pb);
avio_flush(spdif_ctx->lavf_ctx->pb);
if (ret < 0)
return AD_ERR;