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feat: 支持树莓派 v4l2m2m 编码器探测

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mofeng
2026-02-09 14:54:46 +08:00
parent 8b17a0c48b
commit f8a031c90c
6 changed files with 85 additions and 12 deletions
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6
libs/hwcodec/cpp/common/util.cpp
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@@ -147,11 +147,11 @@ bool set_lantency_free(void *priv_data, const std::string &name) {
// V4L2 M2M hardware encoder - minimize buffer latency
if (name.find("v4l2m2m") != std::string::npos) {
// Minimize number of output buffers for lower latency
if ((ret = av_opt_set_int(priv_data, "num_output_buffers", 2, 0)) < 0) {
if ((ret = av_opt_set_int(priv_data, "num_output_buffers", 4, 0)) < 0) {
LOG_WARN(std::string("v4l2m2m set num_output_buffers failed, ret = ") + av_err2str(ret));
// Not fatal
}
if ((ret = av_opt_set_int(priv_data, "num_capture_buffers", 2, 0)) < 0) {
if ((ret = av_opt_set_int(priv_data, "num_capture_buffers", 4, 0)) < 0) {
LOG_WARN(std::string("v4l2m2m set num_capture_buffers failed, ret = ") + av_err2str(ret));
// Not fatal
}
@@ -500,4 +500,4 @@ bool has_flag_could_not_find_ref_with_poc() {
extern "C" void hwcodec_set_flag_could_not_find_ref_with_poc() {
util_decode::g_flag_could_not_find_ref_with_poc = true;
}
}