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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00

src_buffer: move audio format change check in a separate function.

This commit is contained in:
Nicolas George 2012-04-27 20:36:57 +02:00
parent cc14cdec45
commit be8edff8d1

View File

@ -69,6 +69,28 @@ typedef struct {
return AVERROR(EINVAL);\
}
static int insert_filter(BufferSourceContext *abuffer,
AVFilterLink *link, AVFilterContext **filt_ctx,
const char *filt_name);
static void remove_filter(AVFilterContext **filt_ctx);
static int reconfigure_filter(BufferSourceContext *abuffer, AVFilterContext *filt_ctx);
static inline void log_input_change(void *ctx, AVFilterLink *link, AVFilterBufferRef *ref)
{
char old_layout_str[16], new_layout_str[16];
av_get_channel_layout_string(old_layout_str, sizeof(old_layout_str),
-1, link->channel_layout);
av_get_channel_layout_string(new_layout_str, sizeof(new_layout_str),
-1, ref->audio->channel_layout);
av_log(ctx, AV_LOG_INFO,
"Audio input format changed: "
"%s:%s:%d -> %s:%s:%d, normalizing\n",
av_get_sample_fmt_name(link->format),
old_layout_str, (int)link->sample_rate,
av_get_sample_fmt_name(ref->format),
new_layout_str, ref->audio->sample_rate);
}
static int check_format_change_video(AVFilterContext *buffer_filter,
AVFilterBufferRef *picref)
{
@ -122,12 +144,72 @@ static int check_format_change_video(AVFilterContext *buffer_filter,
return 0;
}
static int check_format_change_audio(AVFilterContext *ctx,
AVFilterBufferRef *samplesref)
{
BufferSourceContext *abuffer = ctx->priv;
AVFilterLink *link;
int ret, logged = 0;
link = ctx->outputs[0];
if (samplesref->audio->sample_rate != link->sample_rate) {
log_input_change(ctx, link, samplesref);
logged = 1;
abuffer->sample_rate = samplesref->audio->sample_rate;
if (!abuffer->aresample) {
ret = insert_filter(abuffer, link, &abuffer->aresample, "aresample");
if (ret < 0) return ret;
} else {
link = abuffer->aresample->outputs[0];
if (samplesref->audio->sample_rate == link->sample_rate)
remove_filter(&abuffer->aresample);
else
if ((ret = reconfigure_filter(abuffer, abuffer->aresample)) < 0)
return ret;
}
}
link = ctx->outputs[0];
if (samplesref->format != link->format ||
samplesref->audio->channel_layout != link->channel_layout ||
samplesref->audio->planar != link->planar) {
if (!logged) log_input_change(ctx, link, samplesref);
abuffer->sample_format = samplesref->format;
abuffer->channel_layout = samplesref->audio->channel_layout;
abuffer->packing_format = samplesref->audio->planar;
if (!abuffer->aconvert) {
ret = insert_filter(abuffer, link, &abuffer->aconvert, "aconvert");
if (ret < 0) return ret;
} else {
link = abuffer->aconvert->outputs[0];
if (samplesref->format == link->format &&
samplesref->audio->channel_layout == link->channel_layout &&
samplesref->audio->planar == link->planar
)
remove_filter(&abuffer->aconvert);
else
if ((ret = reconfigure_filter(abuffer, abuffer->aconvert)) < 0)
return ret;
}
}
return 0;
}
static int check_format_change(AVFilterContext *buffer_filter,
AVFilterBufferRef *picref)
{
switch (buffer_filter->outputs[0]->type) {
case AVMEDIA_TYPE_VIDEO:
return check_format_change_video(buffer_filter, picref);
case AVMEDIA_TYPE_AUDIO:
return check_format_change_audio(buffer_filter, picref);
default:
return AVERROR(ENOSYS);
}
@ -484,29 +566,12 @@ static void remove_filter(AVFilterContext **filt_ctx)
set_link_source(src, outlink);
}
static inline void log_input_change(void *ctx, AVFilterLink *link, AVFilterBufferRef *ref)
{
char old_layout_str[16], new_layout_str[16];
av_get_channel_layout_string(old_layout_str, sizeof(old_layout_str),
-1, link->channel_layout);
av_get_channel_layout_string(new_layout_str, sizeof(new_layout_str),
-1, ref->audio->channel_layout);
av_log(ctx, AV_LOG_INFO,
"Audio input format changed: "
"%s:%s:%d -> %s:%s:%d, normalizing\n",
av_get_sample_fmt_name(link->format),
old_layout_str, (int)link->sample_rate,
av_get_sample_fmt_name(ref->format),
new_layout_str, ref->audio->sample_rate);
}
int av_asrc_buffer_add_audio_buffer_ref(AVFilterContext *ctx,
AVFilterBufferRef *samplesref,
int av_unused flags)
{
BufferSourceContext *abuffer = ctx->priv;
AVFilterLink *link;
int ret, logged = 0;
int ret;
if (av_fifo_space(abuffer->fifo) < sizeof(samplesref)) {
av_log(ctx, AV_LOG_ERROR,
@ -515,55 +580,9 @@ int av_asrc_buffer_add_audio_buffer_ref(AVFilterContext *ctx,
return AVERROR(EINVAL);
}
// Normalize input
link = ctx->outputs[0];
if (samplesref->audio->sample_rate != link->sample_rate) {
log_input_change(ctx, link, samplesref);
logged = 1;
abuffer->sample_rate = samplesref->audio->sample_rate;
if (!abuffer->aresample) {
ret = insert_filter(abuffer, link, &abuffer->aresample, "aresample");
if (ret < 0) return ret;
} else {
link = abuffer->aresample->outputs[0];
if (samplesref->audio->sample_rate == link->sample_rate)
remove_filter(&abuffer->aresample);
else
if ((ret = reconfigure_filter(abuffer, abuffer->aresample)) < 0)
return ret;
}
}
link = ctx->outputs[0];
if (samplesref->format != link->format ||
samplesref->audio->channel_layout != link->channel_layout ||
samplesref->audio->planar != link->planar) {
if (!logged) log_input_change(ctx, link, samplesref);
abuffer->sample_format = samplesref->format;
abuffer->channel_layout = samplesref->audio->channel_layout;
abuffer->packing_format = samplesref->audio->planar;
if (!abuffer->aconvert) {
ret = insert_filter(abuffer, link, &abuffer->aconvert, "aconvert");
if (ret < 0) return ret;
} else {
link = abuffer->aconvert->outputs[0];
if (samplesref->format == link->format &&
samplesref->audio->channel_layout == link->channel_layout &&
samplesref->audio->planar == link->planar
)
remove_filter(&abuffer->aconvert);
else
if ((ret = reconfigure_filter(abuffer, abuffer->aconvert)) < 0)
return ret;
}
}
ret = check_format_change(ctx, samplesref);
if (ret < 0)
return ret;
if (sizeof(samplesref) != av_fifo_generic_write(abuffer->fifo, &samplesref,
sizeof(samplesref), NULL)) {