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Code Issues Releases Activity

avformat/internal: Improve documentation of ff_packet_list_get

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The documentation of ff_packet_list_get currently didn't match the
actual usage:
1. It said that the destination packet is supposed to be initialized.
But this makes no sense given that it will be overwritten completely and
flacenc, mp3enc and ttaenc ignored this.
2. ff_packet_list_get returns an int, although it can't fail in case the
packet list is not empty (for which there is an assert). Again, several
callers didn't check for any return value.
In both cases, the documentation has been adapted to match actual usage.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Andreas Rheinhardt 2019-08-19 23:56:18 +02:00 committed by Michael Niedermayer
parent 1d86e4b3eb
commit 8b1be6e5eb
1 changed files with 4 additions and 1 deletions
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5
libavformat/internal.h
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@ -773,13 +773,16 @@ int ff_packet_list_put(AVPacketList **head, AVPacketList **tail,
/**
* Remove the oldest AVPacket in the list and return it.
* The behaviour is undefined if the packet list is empty.
*
* @note The pkt will be overwritten completely. The caller owns the
* packet and must unref it by itself.
*
* @param head List head element
* @param tail List tail element
* @param pkt Pointer to an initialized AVPacket struct
* @param pkt Pointer to an AVPacket struct
* @return 0 on success. Success is guaranteed
* if the packet list is not empty.
*/
int ff_packet_list_get(AVPacketList **head, AVPacketList **tail,
AVPacket *pkt);