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for #738, support srs ingest mp4

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This commit is contained in:
winlin 2017-02-05 21:22:07 +08:00
parent 4fe79a1025
commit 31191f2650
2 changed files with 40 additions and 4 deletions
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37
trunk/src/kernel/srs_kernel_mp4.cpp
View file

@ -28,6 +28,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include <srs_kernel_stream.hpp>
#include <srs_core_autofree.hpp>
#include <srs_kernel_io.hpp>
#include <srs_kernel_utility.hpp>
#include <srs_kernel_buffer.hpp>
#include <string.h>
@ -3177,6 +3178,7 @@ SrsMp4Sample::SrsMp4Sample()
data = NULL;
frame_type = SrsCodecVideoAVCFrameForbidden;
tbn = 0;
adjust = 0;
}
SrsMp4Sample::~SrsMp4Sample()
@ -3186,12 +3188,12 @@ SrsMp4Sample::~SrsMp4Sample()
uint32_t SrsMp4Sample::dts_ms()
{
return (uint32_t)(dts * 1000 / tbn);
return (uint32_t)(dts * 1000 / tbn) + adjust;
}
uint32_t SrsMp4Sample::pts_ms()
{
return (uint32_t)(pts * 1000 / tbn);
return (uint32_t)(pts * 1000 / tbn) + adjust;
}
SrsMp4SampleManager::SrsMp4SampleManager()
@ -3226,11 +3228,42 @@ int SrsMp4SampleManager::load(SrsMp4MovieBox* moov)
}
// Dumps temp samples.
// Adjust the sequence diff.
int32_t maxp = 0;
int32_t maxn = 0;
if (true) {
uint32_t tbn = 0;
SrsMp4Sample* pvideo = NULL;
map<uint64_t, SrsMp4Sample*>::iterator it;
for (it = tses.begin(); it != tses.end(); ++it) {
SrsMp4Sample* sample = it->second;
samples.push_back(sample);
if (sample->type == SrsCodecFlvTagVideo) {
pvideo = sample;
} else if (pvideo) {
tbn = sample->tbn;
int32_t diff = sample->dts_ms() - pvideo->dts_ms();
if (diff > 0) {
maxp = srs_max(maxp, diff);
} else {
maxn = srs_min(maxn, diff);
}
pvideo = NULL;
}
}
}
// Adjust when one of maxp and maxn is zero,
// that means we can adjust by add maxn or sub maxp,
// notice that maxn is negative and maxp is positive.
if (maxp * maxn == 0 && maxp + maxn != 0) {
map<uint64_t, SrsMp4Sample*>::iterator it;
for (it = tses.begin(); it != tses.end(); ++it) {
SrsMp4Sample* sample = it->second;
if (sample->type == SrsCodecFlvTagAudio) {
sample->adjust = 0 - maxp - maxn;
}
}
}

7
trunk/src/kernel/srs_kernel_mp4.hpp
View file

@ -1427,6 +1427,9 @@ public:
uint32_t tbn;
// For video, the frame type, whether keyframe.
SrsCodecVideoAVCFrame frame_type;
// The adjust timestamp in milliseconds.
// For example, we can adjust a timestamp for A/V to monotonically increase.
int32_t adjust;
// The sample data.
uint32_t nb_data;
uint8_t* data;
@ -1434,9 +1437,9 @@ public:
SrsMp4Sample();
virtual ~SrsMp4Sample();
public:
// Get the dts in ms.
// Get the adjusted dts in ms.
virtual uint32_t dts_ms();
// Get the pts in ms.
// Get the adjusted pts in ms.
virtual uint32_t pts_ms();
};