I wrote a access_demux plug-in for VLC on WinRT platform. The plug-in is the same with libaccess_winrt_plugin which is built in Visual Studio.
I found it load and open successfully, but it cannot decode both video and audio packages. These packages come from our SDK, which works fine in our products.
Here is a parts of logs.
Code: Select all
avcodec decoder debug: CPU flags: 0x000053db
avcodec decoder debug: direct rendering is disabled
avcodec decoder debug: allowing 4 thread(s) for decoding
avcodec decoder debug: avcodec codec (H264 - MPEG-4 AVC (part 10)) started
avcodec decoder debug: using frame thread mode with 4 threads
core decoder debug: using decoder module "avcodec"
core decoder debug: looking for decoder module matching "any": 28 candidates
avcodec decoder debug: CPU flags: 0x000053db
avcodec decoder debug: avcodec codec (MPEG AAC Audio) started
core decoder debug: using decoder module "avcodec"
core demux meta debug: looking for meta reader module matching "any": 0 candidates
core demux meta debug: no meta reader modules
core input debug: `ppvod2://play.api.pptv.com/17150032?&type=winrt&platform=win8&vvid=60bd9b75-1558-4ae9-bfac-d3b8104019d3&content=need_drag&userLevel=1' successfully opened
core input debug: Buffering 0%
core input debug: Buffering 0%
core input debug: Buffering 0%
core input debug: Buffering 0%
core input debug: Buffering 0%
core input debug: Buffering 0%
core input debug: Buffering 0%
core input debug: Buffering 0%
core input debug: Buffering 0%
core input debug: Stream buffering done (416 ms in 4 ms)
avcodec decoder warning: cannot decode one frame (6979 bytes)
core input debug: Decoder wait done in 0 ms
core generic debug: reusing audio output
core audio output debug: output 'f32l' 44100 Hz Stereo frame=1 samples/8 bytes
core volume debug: looking for audio volume module matching "any": 2 candidates
“VLC_WINRT_PPBOX.exe”(Win32): load“D:\vlc\winrt\app\VLC_WINRT_PPBOX\bin\x86\Debug\AppX\plugins\audio_mixer\libfloat_mixer_plugin.dll”。
core volume debug: using audio volume module "float_mixer"
core audio output debug: input 'f32l' 44100 Hz Stereo frame=1 samples/8 bytes
core audio filter debug: looking for audio filter module matching "scaletempo": 13 candidates
“VLC_WINRT_PPBOX.exe”(Win32): load“D:\vlc\winrt\app\VLC_WINRT_PPBOX\bin\x86\Debug\AppX\plugins\audio_filter\libscaletempo_plugin.dll”。
scaletempo audio filter debug: format: 44100 rate, 2 nch, 4 bps, fl32
scaletempo audio filter debug: params: 30 stride, 0.200 overlap, 14 search
scaletempo audio filter debug: 1.000 scale, 1323.000 stride_in, 1323 stride_out, 1059 standing, 264 overlap, 617 search, 2204 queue, fl32 mode
core audio filter debug: using audio filter module "scaletempo"
core audio output debug: conversion: 'f32l'->'f32l' 44100 Hz->44100 Hz Stereo->Stereo
core audio output debug: conversion pipeline complete
core audio output debug: conversion: 'f32l'->'f32l' 44100 Hz->44100 Hz Stereo->Stereo
core audio output debug: conversion pipeline complete
core audio resampler debug: looking for audio resampler module matching "any": 2 candidates
“VLC_WINRT_PPBOX.exe”(Win32): load“D:\vlc\winrt\app\VLC_WINRT_PPBOX\bin\x86\Debug\AppX\plugins\audio_filter\libugly_resampler_plugin.dll”。
core audio resampler debug: using audio resampler module "ugly_resampler"
core decoder debug: End of audio preroll
avcodec decoder warning: cannot decode one frame (4914 bytes)
avcodec decoder warning: cannot decode one frame (3751 bytes)
avcodec decoder warning: cannot decode one frame (3740 bytes)
avcodec decoder warning: cannot decode one frame (2796 bytes)
线程 0x312c 已退出，返回值为 0 (0x0)。
avcodec decoder warning: cannot decode one frame (7139 bytes)
avcodec decoder warning: cannot decode one frame (6304 bytes)
avcodec decoder warning: cannot decode one frame (3969 bytes)
avcodec decoder warning: cannot decode one frame (3710 bytes)
Code: Select all
static int DemuxInit(demux_t *p_demux)
{
demux_sys_t *p_sys = p_demux->p_sys;
/* init context */
p_sys->i_time = -1;
p_sys->i_length = 0;
p_sys->i_bitrate = 0;
for (int i = 0; i < 128; i++)
{
p_sys->track[i] = NULL;
}
p_sys->i_length = (mtime_t)PPBOX_GetDuration() * 1000;
p_sys->b_seek = p_sys->i_length > 0;
p_sys->i_track = PPBOX_GetStreamCount();
if (p_sys->i_track <= 0)
{
Debug(L"PPBOX plugin discarded (cannot find any stream!)");
return VLC_EGENERIC;
}
Debug(L"found %d streams", p_sys->i_track);
for (unsigned i_stream = 0; i_stream < p_sys->i_track; i_stream++)
{
ppbox_track_t *tk;
tk = p_sys->track[i_stream] = (ppbox_track_t *)malloc(sizeof(ppbox_track_t));
memset(tk, 0, sizeof(ppbox_track_t));
tk->i_time = -1;
tk->p_es = NULL;
PPBOX_StreamInfoEx * p_si = (PPBOX_StreamInfoEx *)malloc(sizeof(PPBOX_StreamInfoEx));
PPBOX_GetStreamInfoEx(i_stream, p_si);
tk->p_si = p_si;
es_format_t fmt;
if (p_si->type == PPBOX_StreamTypeEnum::ppbox_audio)
{
es_format_Init(&fmt, AUDIO_ES, 0);
if (p_si->sub_type == PPBOX_StreamSubTypeEnum::ppbox_audio_aac)
{
fmt.i_codec = VLC_FOURCC('m', 'p', '4', 'a');
}
if (p_si->sub_type == PPBOX_StreamSubTypeEnum::ppbox_audio_mp3)
{
fmt.i_codec = VLC_FOURCC('.','m', 'p', '3');
}
if (p_si->sub_type == PPBOX_StreamSubTypeEnum::ppbox_audio_wma)
{
fmt.i_codec = VLC_FOURCC('w', 'm', 'a', '2');
}
fmt.audio.i_channels = p_si->audio_format.channel_count;
fmt.audio.i_rate = p_si->audio_format.sample_rate;
fmt.audio.i_bitspersample = p_si->audio_format.sample_size;
fmt.i_extra = p_si->format_size;
fmt.p_extra = malloc(fmt.i_extra);
memcpy(fmt.p_extra, p_si->format_buffer, fmt.i_extra);
Debug(L"added new audio stream(codec:0x%x,ID:%d)", fmt.i_codec, i_stream);
}
else if (p_si->type == PPBOX_StreamTypeEnum::ppbox_video)
{
es_format_Init(&fmt, VIDEO_ES, 0);
if (p_si->sub_type == PPBOX_StreamSubTypeEnum::ppbox_video_avc)
{
fmt.i_codec = VLC_FOURCC('H', '2', '6', '4');
}
fmt.video.i_width = p_si->video_format.width;
fmt.video.i_height = p_si->video_format.height;
fmt.video.i_frame_rate = 10000000;
fmt.video.i_frame_rate_base = 1;
fmt.i_extra = p_si->format_size;
fmt.p_extra = malloc(fmt.i_extra);
memcpy(fmt.p_extra, p_si->format_buffer, fmt.i_extra);
Debug(L"added new video stream(ID:%d)", i_stream);
}
else
{
es_format_Init(&fmt, UNKNOWN_ES, 0);
}
tk->i_cat = fmt.i_cat;
if (fmt.i_cat != UNKNOWN_ES)
{
tk->p_es = es_out_Add(p_demux->out, &fmt);
}
else
{
Debug(L"ignoring unknown stream(ID:%d)", i_stream);
}
//es_format_Clean(&fmt);
}
return VLC_SUCCESS;
}
static mtime_t GetMoviePTS(demux_sys_t *p_sys)
{
mtime_t i_time = -1;
int i;
for (i = 0; i < 128; i++)
{
ppbox_track_t *tk = p_sys->track[i];
if (tk && tk->p_es && tk->i_time > 0)
{
if (i_time < 0) i_time = tk->i_time;
else i_time = __MIN(i_time, tk->i_time);
}
}
return i_time;
}
static int Demux(demux_t *p_demux)
{
demux_sys_t *p_sys = p_demux->p_sys;
for (;;)
{
PP_int32 ret;
if (!vlc_object_alive(p_demux))
return -1;
PPBOX_SampleEx sample;
ret = PPBOX_ReadSampleEx(&sample);
/* Read and demux a packet */
if (ret == ppbox_success) {
//msg_Dbg( p_demux, "PPBOX_ReadSample itrack: %lu, time: %llu",
// sample.itrack, sample.time);
if (p_sys->i_time < 0)
es_out_Control(p_demux->out, ES_OUT_SET_PCR, sample.decode_time + 1);
ppbox_track_t * tk = p_sys->track[sample.stream_index];
block_t * p_block = block_Alloc(sample.buffer_length);
p_block->i_pts = sample.decode_time + sample.composite_time_delta;
p_block->i_dts = sample.decode_time;
memcpy(p_block->p_buffer, sample.buffer, sample.buffer_length);
tk->i_time = sample.decode_time;
p_sys->i_time = GetMoviePTS(p_sys);
//p_sys->i_time = sample.decode_time;
es_out_Send(p_demux->out, tk->p_es, p_block);
es_out_Control(p_demux->out, ES_OUT_SET_PCR, sample.decode_time + 1);
return 1;
}
else if (ret == ppbox_would_block) {
Debug(L"PPBOX_ReadSample ppbox_would_block");
//usleep(10000);
if (!vlc_object_alive(p_demux))
return -1;
}
else if (ret == ppbox_stream_end) {
Debug(L"PPBOX_ReadSample ppbox_stream_end");
return 0;
}
else {
Debug(L"PPBOX_ReadSample %s", PPBOX_GetLastErrorMsg());
return -1;
}
}
return 1;
}
PS2: es_format_Clean this function throw error in DemuxInit function. If I use the source codes instead of this function, it works fine.
Could someone help me to solve this issue?
Thanks a lot.
Best regards,
Jesse
