mirrors/libstb-hal
1
0
Fork 0
mirror of https://github.com/tuxbox-neutrino/libstb-hal.git synced 2025-08-27 15:33:00 +02:00
Code Issues Packages Projects Releases Wiki Activity

Enable aac writer and use resmpling for some AAC streams thx Taapat and technik

Browse Source
This commit is contained in:
schpuntik
2016-10-28 23:42:58 +02:00
parent 19b576a45c
commit 73483990f8
7 changed files with 116 additions and 73 deletions
Download Patch File Download Diff File Expand all files Collapse all files

42
libeplayer3/writer/pcm.cpp
View File

@@ -242,27 +242,36 @@ bool WriterPCM::Write(AVPacket *packet, int64_t pts)
restart_audio_resampling = false;
initialHeader = true;
if (swr) {
swr_free(&swr);
swr = NULL;
}
if (decoded_frame) {
av_frame_free(&decoded_frame);
decoded_frame = NULL;
}
AVCodec *codec = avcodec_find_decoder(c->codec_id);
if (!codec) {
fprintf(stderr, "%s %d: avcodec_find_decoder(%llx)\n", __func__, __LINE__, (unsigned long long) c->codec_id);
return false;
if (!codec) {
fprintf(stderr, "%s %d: avcodec_find_decoder(%llx)\n", __func__, __LINE__, (unsigned long long) c->codec_id);
return false;
}
avcodec_close(c);
if (avcodec_open2(c, codec, NULL)) {
fprintf(stderr, "%s %d: avcodec_open2 failed\n", __func__, __LINE__);
return false;
if (avcodec_open2(c, codec, NULL)) {
fprintf(stderr, "%s %d: avcodec_open2 failed\n", __func__, __LINE__);
return false;
}
}
if (!swr) {
int rates[] = { 48000, 96000, 192000, 44100, 88200, 176400, 0 };
int *rate = rates;
int in_rate = c->sample_rate;
while (*rate && ((*rate / in_rate) * in_rate != *rate) && (in_rate / *rate) * *rate != in_rate)
rate++;
out_sample_rate = *rate ? *rate : 44100;
// rates in descending order
int rates[] = {192000, 176400, 96000, 88200, 48000, 44100, 0};
int i = 0;
// find the next equal or smallest rate
while (rates[i] && in_rate < rates[i])
i++;
out_sample_rate = rates[i] ? rates[i] : 44100;
out_channels = c->channels;
if (c->channel_layout == 0) {
// FIXME -- need to guess, looks pretty much like a bug in the FFMPEG WMA decoder
@@ -304,9 +313,16 @@ bool WriterPCM::Write(AVPacket *packet, int64_t pts)
unsigned int packet_size = packet->size;
while (packet_size > 0 || (!packet_size && !packet->data)) {
av_frame_unref(decoded_frame);
int got_frame = 0;
if (!decoded_frame) {
if (!(decoded_frame = av_frame_alloc())) {
fprintf(stderr, "out of memory\n");
exit(1);
}
} else
av_frame_unref(decoded_frame);
int len = avcodec_decode_audio4(c, decoded_frame, &got_frame, packet);
if (len < 0) {
restart_audio_resampling = true;