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libopenmpt: add subsong support 

Signed-off-by: Josh de Kock <josh@itanimul.li>
This commit is contained in:
Josh de Kock 2016-07-18 13:58:04 +01:00
parent 120f34b6ac
commit 9134d2df5b
1 changed files with 27 additions and 3 deletions
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30
libavformat/libopenmpt.c
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@ -36,15 +36,19 @@ typedef struct OpenMPTContext {
/* options */
int sample_rate;
int64_t layout;
int subsong;
} OpenMPTContext;
#define OFFSET(x) offsetof(OpenMPTContext, x)
#define A AV_OPT_FLAG_AUDIO_PARAM
#define D AV_OPT_FLAG_DECODING_PARAM
static const AVOption options[] = {
{"sample_rate", "set sample rate", OFFSET(sample_rate), AV_OPT_TYPE_INT, {.i64 = 48000}, 1000, INT_MAX, A|D},
{"layout", "set channel layout", OFFSET(layout), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64 = AV_CH_LAYOUT_STEREO}, 0, INT64_MAX, A|D},
{NULL}
{ "sample_rate", "set sample rate", OFFSET(sample_rate), AV_OPT_TYPE_INT, { .i64 = 48000 }, 1000, INT_MAX, A | D },
{ "layout", "set channel layout", OFFSET(layout), AV_OPT_TYPE_CHANNEL_LAYOUT, { .i64 = AV_CH_LAYOUT_STEREO }, 0, INT64_MAX, A | D },
{ "subsong", "set subsong", OFFSET(subsong), AV_OPT_TYPE_INT, { .i64 = -2 }, -2, INT_MAX, A | D, "subsong"},
{ "all", "all", 0, AV_OPT_TYPE_CONST, { .i64 = -1}, 0, 0, A | D, "subsong" },
{ "auto", "auto", 0, AV_OPT_TYPE_CONST, { .i64 = -2}, 0, 0, A | D, "subsong" },
{ NULL }
};
static void openmpt_logfunc(const char *message, void *userdata)
@ -70,6 +74,8 @@ static int read_header_openmpt(AVFormatContext *s)
OpenMPTContext *openmpt = s->priv_data;
int64_t size = avio_size(s->pb);
char *buf = av_malloc(size);
int ret;
if (!buf)
return AVERROR(ENOMEM);
@ -88,6 +94,24 @@ static int read_header_openmpt(AVFormatContext *s)
add_meta(s, "encoder", openmpt_module_get_metadata(openmpt->module, "tracker"));
add_meta(s, "comment", openmpt_module_get_metadata(openmpt->module, "message"));
if (openmpt->subsong >= openmpt_module_get_num_subsongs(openmpt->module)) {
openmpt_module_destroy(openmpt->module);
av_log(s, AV_LOG_ERROR, "Invalid subsong index: %d\n", openmpt->subsong);
return AVERROR(EINVAL);
}
if (openmpt->subsong != -2) {
if (openmpt->subsong >= 0) {
av_dict_set_int(&s->metadata, "track", openmpt->subsong + 1, 0);
}
ret = openmpt_module_select_subsong(openmpt->module, openmpt->subsong);
if (!ret){
openmpt_module_destroy(openmpt->module);
av_log(s, AV_LOG_ERROR, "Could not select requested subsong: %d", openmpt->subsong);
return AVERROR(EINVAL);
}
}
st = avformat_new_stream(s, NULL);
if (!st) {
openmpt_module_destroy(openmpt->module);